Revert "[LiveDebugValues][NFC] Add instr-ref tests, adapt old tests"
Asan has picked up a memory leak, which will require some investigation:
http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-fast/builds/45372/steps/check-llvm%20asan/logs/stdio
This reverts commit 60db26a66d.
This commit is contained in:
Jeremy Morse
@@ -1,100 +0,0 @@
|
||||
--- |
|
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; RUN: llc %s -march=x86-64 -run-pass=livedebugvalues -o - -experimental-debug-variable-locations -emulate-old-livedebugvalues=0 | FileCheck %s -implicit-check-not=DBG_VALUE
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; This test has two loop heads (bb1, bb2) and a PHI going into bb5. In bb2,
|
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; we need to explore / downgrade from the value of ebx def'd in the entry
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; block, through the first loop head, then propose and confirm a PHI at the
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; second loop head.
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;; Checks represent each DBG_VALUE in the MIR below, and the a live-in
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;; DBG_VALUE at the start of each block added by LiveDebugValues.
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; CHECK-LABEL: bb.0.entry:
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; CHECK: DBG_VALUE $eax
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; CHECK-LABEL: bb.1.bb1:
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; CHECK: DBG_VALUE $ebx
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; CHECK: DBG_VALUE $ebx
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; CHECK-LABEL: bb.2.bb2:
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; CHECK: DBG_VALUE $ebx
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; CHECK-LABEL: bb.3.bb3:
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; CHECK: DBG_VALUE $ebx
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; CHECK: DBG_VALUE $ebx
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; CHECK-LABEL: bb.4.bb4:
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; CHECK: DBG_VALUE $ebx
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; CHECK-LABEL: bb.5.bb5:
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; CHECK: DBG_VALUE $ebx
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; CHECK-LABEL: bb.6:
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; CHECK: DBG_VALUE $ebx
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; CHECK-LABEL: bb.7:
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; CHECK: DBG_VALUE $ebx
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define i32 @_Z8bb_to_bb() local_unnamed_addr !dbg !12 {
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entry:
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br label %bb1, !dbg !17
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bb1:
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br label %bb2, !dbg !17
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bb2:
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br label %bb3, !dbg !17
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bb3:
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br label %bb3, !dbg !17
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bb4:
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br label %bb3, !dbg !17
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bb5:
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ret i32 0, !dbg !17
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!7, !8, !9, !10}
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!llvm.ident = !{!11}
|
||||
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 10.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !3, debugInfoForProfiling: true, nameTableKind: None)
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!1 = !DIFile(filename: "main.cpp", directory: "F:\")
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!2 = !{}
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!3 = !{!4}
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!4 = !DIGlobalVariableExpression(var: !5, expr: !DIExpression())
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||||
!5 = distinct !DIGlobalVariable(name: "start", scope: !0, file: !1, line: 4, type: !6, isLocal: false, isDefinition: true)
|
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!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
|
||||
!7 = !{i32 2, !"Dwarf Version", i32 4}
|
||||
!8 = !{i32 2, !"Debug Info Version", i32 3}
|
||||
!9 = !{i32 1, !"wchar_size", i32 2}
|
||||
!10 = !{i32 7, !"PIC Level", i32 2}
|
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!11 = !{!"clang version 10.0.0"}
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!12 = distinct !DISubprogram(name: "bb_to_bb", linkageName: "bb_to_bb", scope: !1, file: !1, line: 6, type: !13, scopeLine: 6, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !15)
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!13 = !DISubroutineType(types: !14)
|
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!14 = !{!6, !6}
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!15 = !{!16}
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!16 = !DILocalVariable(name: "myVar", scope: !12, file: !1, line: 7, type: !6)
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!17 = !DILocation(line: 10, scope: !12)
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|
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...
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---
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name: _Z8bb_to_bb
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body: |
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bb.0.entry:
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successors: %bb.1
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$ebx = MOV32ri 0, debug-location !17
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$eax = COPY $ebx
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DBG_VALUE $eax, $noreg, !16, !DIExpression(), debug-location !17
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bb.1.bb1:
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successors: %bb.2
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$eax = COPY $ebx, debug-location !17
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$ebx = COPY $ecx, debug-location !17
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DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
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bb.2.bb2:
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successors: %bb.3, %bb.4
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JCC_1 %bb.4, 4, implicit $eflags
|
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bb.3.bb3:
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successors: %bb.5
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$ebx = MOV32ri 0, debug-location !17
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DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
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JMP_1 %bb.5
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bb.4.bb4:
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successors: %bb.5
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bb.5.bb5:
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successors: %bb.2, %bb.6
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JCC_1 %bb.2, 4, implicit killed $eflags
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bb.6:
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successors: %bb.1, %bb.7
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||||
JCC_1 %bb.1, 4, implicit killed $eflags
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bb.7:
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RETQ $eax, debug-location !17
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...
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@@ -1,112 +0,0 @@
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--- |
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; RUN: llc %s -march=x86-64 -run-pass=livedebugvalues -o - | FileCheck %s --implicit-check-not=DBG_VALUE
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; RUN: llc %s -march=x86-64 -run-pass=livedebugvalues -o - -experimental-debug-variable-locations | FileCheck %s --implicit-check-not=DBG_VALUE
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;
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; No DBG_VALUEs should be propagated, as there's a loop between bb2 and bb3
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||||
; that defines $rdi without specifying it as being the variable value. Uses
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||||
; implicit check-not in runlines above.
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;
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; CHECK-LABEL: bb.1.while.body
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; CHECK: DBG_VALUE
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; CHECK-NEXT: TEST8rr
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; CHECK-NEXT: JCC_1
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; ModuleID = 'multi-downgrade-but-not-sensitive.ll'
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source_filename = "/fast/fs/llvm3/clang/lib/CodeGen/CoverageMappingGen.cpp"
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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|
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%"struct.std::pair.1976" = type { %"class.clang::SourceLocation", i32 }
|
||||
%"class.clang::SourceLocation" = type { i32 }
|
||||
|
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; Function Attrs: nounwind uwtable
|
||||
define weak_odr void @_ZSt17__merge_sort_loopIPSt4pairIN5clang14SourceLocationEjES4_lN9__gnu_cxx5__ops15_Iter_comp_iterIN4llvm11less_secondEEEEvT_SB_T0_T1_T2_(%"struct.std::pair.1976"* %__result) local_unnamed_addr !dbg !12 {
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while.body.lr.ph:
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br label %while.body, !dbg !17
|
||||
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while.body: ; preds = %while.body, %while.body.i, %while.body.lr.ph
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%__result.addr.099 = phi %"struct.std::pair.1976"* [ %__result, %while.body.lr.ph ], [ %__result.addr.099, %while.body ], [ %incdec.ptr7.i, %while.body.i ]
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call void @llvm.dbg.value(metadata %"struct.std::pair.1976"* %__result.addr.099, metadata !16, metadata !DIExpression()), !dbg !17
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||||
br i1 undef, label %while.body.i.preheader, label %while.body, !dbg !17
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||||
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while.body.i.preheader: ; preds = %while.body
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br label %while.body.i, !dbg !17
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||||
|
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while.body.i: ; preds = %while.body.i, %while.body.i.preheader
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||||
%__result.addr.046.i = phi %"struct.std::pair.1976"* [ %incdec.ptr7.i, %while.body.i ], [ %__result.addr.099, %while.body.i.preheader ]
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%incdec.ptr7.i = getelementptr inbounds %"struct.std::pair.1976", %"struct.std::pair.1976"* %__result.addr.046.i, i64 1, !dbg !17
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%cmp.not.i = icmp ne %"struct.std::pair.1976"* undef, undef, !dbg !17
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%0 = and i1 undef, %cmp.not.i, !dbg !17
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br i1 %0, label %while.body.i, label %while.body, !dbg !17
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||||
}
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||||
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; Function Attrs: nounwind readnone speculatable willreturn
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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||||
|
||||
; Function Attrs: nounwind
|
||||
declare void @llvm.stackprotector(i8*, i8**)
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||||
|
||||
!llvm.dbg.cu = !{!0}
|
||||
!llvm.module.flags = !{!7, !8, !9, !10}
|
||||
!llvm.ident = !{!11}
|
||||
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 10.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !3, debugInfoForProfiling: true, nameTableKind: None)
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||||
!1 = !DIFile(filename: "main.cpp", directory: "F:\")
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!2 = !{}
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||||
!3 = !{!4}
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||||
!4 = !DIGlobalVariableExpression(var: !5, expr: !DIExpression())
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||||
!5 = distinct !DIGlobalVariable(name: "start", scope: !0, file: !1, line: 4, type: !6, isLocal: false, isDefinition: true)
|
||||
!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
|
||||
!7 = !{i32 2, !"Dwarf Version", i32 4}
|
||||
!8 = !{i32 2, !"Debug Info Version", i32 3}
|
||||
!9 = !{i32 1, !"wchar_size", i32 2}
|
||||
!10 = !{i32 7, !"PIC Level", i32 2}
|
||||
!11 = !{!"clang version 10.0.0"}
|
||||
!12 = distinct !DISubprogram(name: "bb_to_bb", linkageName: "bb_to_bb", scope: !1, file: !1, line: 6, type: !13, scopeLine: 6, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !15)
|
||||
!13 = !DISubroutineType(types: !14)
|
||||
!14 = !{!6, !6}
|
||||
!15 = !{!16}
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||||
!16 = !DILocalVariable(name: "myVar", scope: !12, file: !1, line: 7, type: !6)
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||||
!17 = !DILocation(line: 10, scope: !12)
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||||
|
||||
|
||||
...
|
||||
---
|
||||
name: _ZSt17__merge_sort_loopIPSt4pairIN5clang14SourceLocationEjES4_lN9__gnu_cxx5__ops15_Iter_comp_iterIN4llvm11less_secondEEEEvT_SB_T0_T1_T2_
|
||||
alignment: 16
|
||||
tracksRegLiveness: true
|
||||
registers: []
|
||||
liveins:
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||||
- { reg: '$rdi', virtual-reg: '' }
|
||||
machineFunctionInfo: {}
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||||
body: |
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||||
bb.0.while.body.lr.ph:
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successors: %bb.1(0x80000000)
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||||
liveins: $rdi
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||||
|
||||
renamable $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags
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||||
|
||||
bb.1.while.body (align 16):
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successors: %bb.2(0x40000000), %bb.1(0x40000000)
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||||
liveins: $eax, $rdi
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||||
|
||||
DBG_VALUE $rdi, $noreg, !16, !DIExpression(), debug-location !17
|
||||
TEST8rr renamable $al, renamable $al, implicit-def $eflags, debug-location !17
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||||
JCC_1 %bb.1, 5, implicit killed $eflags, debug-location !17
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||||
|
||||
bb.2.while.body.i (align 16):
|
||||
successors: %bb.3(0x7e000000), %bb.1(0x02000000)
|
||||
liveins: $eax, $rdi
|
||||
|
||||
renamable $rdi = nuw ADD64ri8 killed renamable $rdi, 8, implicit-def dead $eflags, debug-location !17
|
||||
TEST8rr renamable $al, renamable $al, implicit-def $eflags, debug-location !17
|
||||
JCC_1 %bb.1, 5, implicit $eflags, debug-location !17
|
||||
|
||||
bb.3.while.body.i:
|
||||
successors: %bb.2(0x7df7df7e), %bb.1(0x02082082)
|
||||
liveins: $eax, $rdi
|
||||
|
||||
TEST8rr renamable $al, renamable $al, implicit-def $eflags, debug-location !17
|
||||
JCC_1 %bb.2, 5, implicit $eflags
|
||||
JMP_1 %bb.1
|
||||
|
||||
...
|
||||
@@ -1,273 +0,0 @@
|
||||
--- |
|
||||
; RUN: llc %s -march=x86-64 -run-pass=livedebugvalues -o - | FileCheck %s
|
||||
; RUN: llc %s -march=x86-64 -run-pass=livedebugvalues -o - -experimental-debug-variable-locations | FileCheck %s
|
||||
;
|
||||
; This is a regression test extracted from llvm11ish LICM.cpp. Consider the
|
||||
; blocks from bb.6 to bb.9: there are two paths to bb.9, one an immediate
|
||||
; branch, the other takes a longer route. Because VarLocBased LiveDebugValues
|
||||
; always schedules blocks to be examined in the _next_ dataflow iteration,
|
||||
; any exploration starting at bb.6 follows this pattern:
|
||||
; * Round 1: Examine block 6
|
||||
; * Round 2: Examine block 7 and 9
|
||||
; * Round 3: Examine block 8
|
||||
; * Round 4: Examine block 9
|
||||
; This works for VarLocBased LDV as it has a simple lattice. However for
|
||||
; InstrRefBasedLDV, in the first examination of block 9 not all predecessors
|
||||
; will have yet accounted for any changes to block 6's live-outs. It takes
|
||||
; several iterations for those to reach block 8. This raises the possibility
|
||||
; of blocks seeing conflicting variable values on their live-in edges, which
|
||||
; wouldn't be present if their predecessors had been visited beforehand.
|
||||
;
|
||||
; It's also not really reverse-post-order visiting.
|
||||
|
||||
; Test that a variable value appears in bb.9, which is renumbered 19 during
|
||||
; mir parsing.
|
||||
; CHECK-LABEL: bb.19:
|
||||
; CHECK: DBG_VALUE
|
||||
; CHECK-NEXT: JMP_1 %bb.19
|
||||
|
||||
; ModuleID = 'rpot_bad.ll'
|
||||
source_filename = "/fast/fs/llvm3/llvm/lib/Transforms/Scalar/LICM.cpp"
|
||||
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
|
||||
target triple = "x86_64-unknown-linux-gnu"
|
||||
|
||||
; Function Attrs: nounwind uwtable
|
||||
define zeroext i1 @mangled(i64 %LI, i64 %DT, i64 %MSSAU) local_unnamed_addr #0 !dbg !12 {
|
||||
entry:
|
||||
ret i1 0
|
||||
}
|
||||
|
||||
declare zeroext i1 @_ZNK4llvm10BasicBlock20canSplitPredecessorsEv() local_unnamed_addr #1
|
||||
|
||||
declare i1 @_ZN4llvm22SplitBlockPredecessorsEPNS_10BasicBlockENS_8ArrayRefIS1_EEPKcPNS_13DominatorTreeEPNS_8LoopInfoEPNS_16MemorySSAUpdaterEb() local_unnamed_addr #1
|
||||
|
||||
; Function Attrs: nounwind uwtable
|
||||
declare hidden void @_ZN4llvm9SetVectorIPNS_10BasicBlockENS_11SmallVectorIS2_Lj8EEENS_13SmallDenseSetIS2_Lj8ENS_12DenseMapInfoIS2_EEEEE6insertINS_12PredIteratorIS1_NS_5Value18user_iterator_implINS_4UserEEEEEEEvT_SH_() local_unnamed_addr #0 align 2
|
||||
|
||||
; Function Attrs: nounwind readnone speculatable willreturn
|
||||
declare void @llvm.dbg.value(metadata, metadata, metadata) #2
|
||||
|
||||
; Function Attrs: nounwind
|
||||
declare void @llvm.stackprotector(i8*, i8**) #3
|
||||
|
||||
!llvm.dbg.cu = !{!0}
|
||||
!llvm.module.flags = !{!7, !8, !9, !10}
|
||||
!llvm.ident = !{!11}
|
||||
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 10.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !3, debugInfoForProfiling: true, nameTableKind: None)
|
||||
!1 = !DIFile(filename: "main.cpp", directory: "F:\")
|
||||
!2 = !{}
|
||||
!3 = !{!4}
|
||||
!4 = !DIGlobalVariableExpression(var: !5, expr: !DIExpression())
|
||||
!5 = distinct !DIGlobalVariable(name: "start", scope: !0, file: !1, line: 4, type: !6, isLocal: false, isDefinition: true)
|
||||
!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
|
||||
!7 = !{i32 2, !"Dwarf Version", i32 4}
|
||||
!8 = !{i32 2, !"Debug Info Version", i32 3}
|
||||
!9 = !{i32 1, !"wchar_size", i32 2}
|
||||
!10 = !{i32 7, !"PIC Level", i32 2}
|
||||
!11 = !{!"clang version 10.0.0"}
|
||||
!12 = distinct !DISubprogram(name: "bb_to_bb", linkageName: "bb_to_bb", scope: !1, file: !1, line: 6, type: !13, scopeLine: 6, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !15)
|
||||
!13 = !DISubroutineType(types: !14)
|
||||
!14 = !{!6, !6}
|
||||
!15 = !{!16}
|
||||
!16 = !DILocalVariable(name: "myVar", scope: !12, file: !1, line: 7, type: !6)
|
||||
!17 = !DILocation(line: 10, scope: !12)
|
||||
|
||||
|
||||
...
|
||||
---
|
||||
name: mangled
|
||||
alignment: 16
|
||||
tracksRegLiveness: true
|
||||
liveins:
|
||||
- { reg: '$rdi' }
|
||||
- { reg: '$rsi' }
|
||||
- { reg: '$rdx' }
|
||||
frameInfo:
|
||||
stackSize: 56
|
||||
offsetAdjustment: -56
|
||||
maxAlignment: 8
|
||||
adjustsStack: true
|
||||
hasCalls: true
|
||||
maxCallFrameSize: 16
|
||||
cvBytesOfCalleeSavedRegisters: 48
|
||||
fixedStack:
|
||||
- { id: 0, type: spill-slot, offset: -56, size: 8, alignment: 8, callee-saved-register: '$rbx' }
|
||||
- { id: 1, type: spill-slot, offset: -48, size: 8, alignment: 16, callee-saved-register: '$r12' }
|
||||
- { id: 2, type: spill-slot, offset: -40, size: 8, alignment: 8, callee-saved-register: '$r13' }
|
||||
- { id: 3, type: spill-slot, offset: -32, size: 8, alignment: 16, callee-saved-register: '$r14' }
|
||||
- { id: 4, type: spill-slot, offset: -24, size: 8, alignment: 8, callee-saved-register: '$r15' }
|
||||
- { id: 5, type: spill-slot, offset: -16, size: 8, alignment: 16, callee-saved-register: '$rbp' }
|
||||
stack:
|
||||
- { id: 0, type: spill-slot, offset: -64, size: 8, alignment: 8 }
|
||||
machineFunctionInfo: {}
|
||||
body: |
|
||||
bb.0:
|
||||
liveins: $rdi, $rdx, $rsi, $rbp, $r15, $r14, $r13, $r12, $rbx
|
||||
|
||||
frame-setup PUSH64r killed $rbp, implicit-def $rsp, implicit $rsp
|
||||
CFI_INSTRUCTION def_cfa_offset 16
|
||||
frame-setup PUSH64r killed $r15, implicit-def $rsp, implicit $rsp
|
||||
CFI_INSTRUCTION def_cfa_offset 24
|
||||
frame-setup PUSH64r killed $r14, implicit-def $rsp, implicit $rsp
|
||||
CFI_INSTRUCTION def_cfa_offset 32
|
||||
frame-setup PUSH64r killed $r13, implicit-def $rsp, implicit $rsp
|
||||
CFI_INSTRUCTION def_cfa_offset 40
|
||||
frame-setup PUSH64r killed $r12, implicit-def $rsp, implicit $rsp
|
||||
CFI_INSTRUCTION def_cfa_offset 48
|
||||
frame-setup PUSH64r killed $rbx, implicit-def $rsp, implicit $rsp
|
||||
CFI_INSTRUCTION def_cfa_offset 56
|
||||
frame-setup PUSH64r undef $rax, implicit-def $rsp, implicit $rsp
|
||||
CFI_INSTRUCTION def_cfa_offset 64
|
||||
CFI_INSTRUCTION offset $rbx, -56
|
||||
CFI_INSTRUCTION offset $r12, -48
|
||||
CFI_INSTRUCTION offset $r13, -40
|
||||
CFI_INSTRUCTION offset $r14, -32
|
||||
CFI_INSTRUCTION offset $r15, -24
|
||||
CFI_INSTRUCTION offset $rbp, -16
|
||||
$r14 = MOV64rr $rdx
|
||||
$r15 = MOV64rr $rsi
|
||||
$r12 = MOV64rr $rdi
|
||||
renamable $r13d = XOR32rr undef $r13d, undef $r13d, implicit-def dead $eflags, implicit-def $r13
|
||||
renamable $bpl = MOV8ri 1
|
||||
|
||||
bb.1:
|
||||
liveins: $bpl, $r12, $r13, $r14, $r15
|
||||
|
||||
renamable $rax = MOV64rm undef renamable $rax, 1, $noreg, 0, $noreg, debug-location !17 :: (load 8 from `i64* undef`)
|
||||
renamable $rax = AND64ri8 killed renamable $rax, -8, implicit-def dead $eflags, debug-location !17
|
||||
renamable $rcx = LEA64r renamable $rax, 1, $noreg, -24, $noreg, debug-location !17
|
||||
TEST64rr renamable $rax, renamable $rax, implicit-def $eflags, debug-location !17
|
||||
renamable $rcx = CMOV64rr killed renamable $rcx, killed renamable $rax, 4, implicit killed $eflags, debug-location !17
|
||||
DBG_VALUE $rcx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
MOV64mr $rsp, 1, $noreg, 0, $noreg, killed renamable $rcx :: (store 8 into %stack.0)
|
||||
DBG_VALUE $rsp, 0, !16, !DIExpression(), debug-location !17
|
||||
TEST8rr renamable $r13b, renamable $r13b, implicit-def $eflags, debug-location !17
|
||||
JCC_1 %bb.1, 5, implicit killed $eflags, debug-location !17
|
||||
|
||||
bb.2:
|
||||
liveins: $bpl, $r12, $r13, $r14, $r15
|
||||
|
||||
TEST8rr renamable $r13b, renamable $r13b, implicit-def $eflags, debug-location !17
|
||||
JCC_1 %bb.1, 5, implicit $eflags, debug-location !17
|
||||
|
||||
bb.3:
|
||||
successors: %bb.4, %bb.1
|
||||
liveins: $bpl, $r12, $r13, $r14, $r15
|
||||
|
||||
TEST8rr renamable $r13b, renamable $r13b, implicit-def $eflags, debug-location !17
|
||||
JCC_1 %bb.1, 5, implicit $eflags, debug-location !17
|
||||
|
||||
bb.4:
|
||||
successors: %bb.5(0x7c000000), %bb.6(0x04000000)
|
||||
liveins: $bpl, $r12, $r13, $r14, $r15
|
||||
|
||||
TEST8rr renamable $r13b, renamable $r13b, implicit-def $eflags, debug-location !17
|
||||
JCC_1 %bb.6, 5, implicit $eflags, debug-location !17
|
||||
|
||||
bb.5:
|
||||
successors: %bb.6(0x04000000), %bb.10(0x7c000000)
|
||||
liveins: $bpl, $r12, $r13, $r14, $r15
|
||||
|
||||
CALL64r undef renamable $rax, csr_64, implicit $rsp, implicit $ssp, implicit undef $rdi, implicit-def $rsp, implicit-def $ssp, implicit-def $al, debug-location !17
|
||||
TEST8rr killed renamable $al, renamable $al, implicit-def $eflags, debug-location !17
|
||||
JCC_1 %bb.6, 5, implicit $eflags, debug-location !17
|
||||
|
||||
bb.10:
|
||||
liveins: $bpl, $r12, $r13, $r14, $r15
|
||||
|
||||
renamable $rax = IMPLICIT_DEF
|
||||
JMP_1 %bb.11
|
||||
|
||||
bb.19:
|
||||
liveins: $bpl, $r12, $r13, $r14, $r15
|
||||
|
||||
renamable $rax = MOV64rm $rsp, 1, $noreg, 0, $noreg :: (load 8 from %stack.0)
|
||||
renamable $rax = MOV64rm killed renamable $rax, 1, $noreg, 8, $noreg, debug-location !17 :: (load 8 from `i64 *undef`)
|
||||
|
||||
bb.11:
|
||||
successors: %bb.12, %bb.11
|
||||
liveins: $bpl, $rax, $r12, $r13, $r14, $r15
|
||||
|
||||
TEST8rr renamable $r13b, renamable $r13b, implicit-def $eflags, debug-location !17
|
||||
JCC_1 %bb.11, 5, implicit killed $eflags, debug-location !17
|
||||
|
||||
bb.12:
|
||||
successors: %bb.13, %bb.11
|
||||
liveins: $bpl, $rax, $r12, $r13, $r14, $r15
|
||||
|
||||
TEST8rr renamable $r13b, renamable $r13b, implicit-def $eflags, debug-location !17
|
||||
JCC_1 %bb.11, 5, implicit $eflags, debug-location !17
|
||||
|
||||
bb.13:
|
||||
liveins: $bpl, $rax, $r12, $r13, $r14, $r15
|
||||
|
||||
TEST8rr renamable $r13b, renamable $r13b, implicit-def $eflags, debug-location !17
|
||||
JCC_1 %bb.11, 5, implicit $eflags, debug-location !17
|
||||
|
||||
bb.14:
|
||||
successors: %bb.15(0x7c000000), %bb.1(0x04000000)
|
||||
liveins: $bpl, $rax, $r12, $r13, $r14, $r15
|
||||
|
||||
renamable $rbx = MOV64rm killed renamable $rax, 1, $noreg, 24, $noreg :: (load 8 from `i64 *undef`)
|
||||
CALL64pcrel32 @_ZNK4llvm10BasicBlock20canSplitPredecessorsEv, csr_64, implicit $rsp, implicit $ssp, implicit undef $rdi, implicit-def $rsp, implicit-def $ssp, implicit-def $al, debug-location !17
|
||||
TEST8rr killed renamable $al, renamable $al, implicit-def $eflags, debug-location !17
|
||||
JCC_1 %bb.1, 4, implicit $eflags, debug-location !17
|
||||
|
||||
bb.15:
|
||||
liveins: $bpl, $rbx, $r12, $r13, $r14, $r15
|
||||
|
||||
renamable $rbx = MOV64rm killed renamable $rbx, 1, $noreg, 40, $noreg, debug-location !17 :: (load 8 from `i64 *undef`)
|
||||
dead $edx = XOR32rr undef $edx, undef $edx, implicit-def dead $eflags, implicit-def $rdx, debug-location !17
|
||||
CALL64pcrel32 @_ZN4llvm9SetVectorIPNS_10BasicBlockENS_11SmallVectorIS2_Lj8EEENS_13SmallDenseSetIS2_Lj8ENS_12DenseMapInfoIS2_EEEEE6insertINS_12PredIteratorIS1_NS_5Value18user_iterator_implINS_4UserEEEEEEEvT_SH_, csr_64, implicit $rsp, implicit $ssp, implicit undef $rdi, implicit undef $rsi, implicit $rdx, implicit-def $rsp, implicit-def $ssp, debug-location !17
|
||||
|
||||
bb.16:
|
||||
successors: %bb.19(0x061801fc), %bb.17(0x79e7fe04)
|
||||
liveins: $bpl, $r12, $r13, $r14, $r15, $rbx
|
||||
|
||||
CMP32mi8 undef renamable $rax, 1, $noreg, 0, $noreg, 0, implicit-def $eflags, debug-location !17 :: (load 4 from `i32* undef`, align 8)
|
||||
JCC_1 %bb.19, 4, implicit $eflags, debug-location !17
|
||||
|
||||
bb.17:
|
||||
successors: %bb.16(0x30000000), %bb.18(0x50000000)
|
||||
liveins: $bpl, $rbx, $r12, $r13, $r14, $r15
|
||||
|
||||
TEST8rr renamable $bpl, renamable $bpl, implicit-def $eflags, debug-location !17
|
||||
JCC_1 %bb.16, 5, implicit $eflags, debug-location !17
|
||||
|
||||
bb.18:
|
||||
liveins: $bpl, $rbx, $r12, $r13, $r14, $r15
|
||||
|
||||
$edx = MOV32ri 1, implicit-def $rdx, debug-location !17
|
||||
;$ecx = MOV32ri @.str.282, implicit-def $rcx, debug-location !17
|
||||
$ecx = MOV32ri 1, debug-location !17
|
||||
$rdi = MOV64rr $rbx, debug-location !17
|
||||
$r8 = MOV64rr $r15, debug-location !17
|
||||
$r9 = MOV64rr $r12, debug-location !17
|
||||
PUSH64i8 1, implicit-def $rsp, implicit $rsp, debug-location !17 :: (store 4 into stack + 8)
|
||||
CFI_INSTRUCTION adjust_cfa_offset 8, debug-location !17
|
||||
PUSH64r renamable $r14, implicit-def $rsp, implicit $rsp, debug-location !17 :: (store 8 into stack)
|
||||
CFI_INSTRUCTION adjust_cfa_offset 8, debug-location !17
|
||||
CALL64pcrel32 @_ZN4llvm22SplitBlockPredecessorsEPNS_10BasicBlockENS_8ArrayRefIS1_EEPKcPNS_13DominatorTreeEPNS_8LoopInfoEPNS_16MemorySSAUpdaterEb, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit undef $rsi, implicit $rdx, implicit $rcx, implicit $r8, implicit $r9, implicit-def $rsp, implicit-def $ssp, implicit-def dead $rax, debug-location !17
|
||||
$rsp = ADD64ri8 $rsp, 16, implicit-def dead $eflags, debug-location !17
|
||||
CFI_INSTRUCTION adjust_cfa_offset -16, debug-location !17
|
||||
JMP_1 %bb.16
|
||||
|
||||
bb.6:
|
||||
renamable $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags
|
||||
TEST8rr renamable $al, renamable $al, implicit-def $eflags, implicit killed $eax, debug-location !17
|
||||
JCC_1 %bb.9, 5, implicit $eflags, debug-location !17
|
||||
|
||||
bb.7:
|
||||
renamable $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags
|
||||
|
||||
bb.8:
|
||||
successors: %bb.9(0x04000000), %bb.8(0x7c000000)
|
||||
liveins: $eax
|
||||
|
||||
TEST8rr renamable $al, renamable $al, implicit-def $eflags, debug-location !17
|
||||
JCC_1 %bb.8, 5, implicit killed $eflags, debug-location !17
|
||||
|
||||
bb.9:
|
||||
JMP_1 %bb.9
|
||||
|
||||
...
|
||||
@@ -21,7 +21,7 @@
|
||||
#
|
||||
# Check that last bundled instruction of block gets recognized as end of basic block.
|
||||
# CHECK: bb.2.if.end
|
||||
# CHECK-NEXT: DBG_VALUE $s0, $noreg, !12, !DIExpression()
|
||||
# CHECK-NEXT: DBG_VALUE $s0, $noreg, !12, !DIExpression(), debug-location !17
|
||||
|
||||
--- |
|
||||
; ModuleID = '<stdin>'
|
||||
|
||||
@@ -14,8 +14,8 @@
|
||||
# ...
|
||||
#
|
||||
# CHECK: bb.1.if.end:
|
||||
# CHECK: DBG_VALUE $rbp, 0, !37, !DIExpression(DW_OP_constu, 44, DW_OP_minus)
|
||||
# CHECK-NOT: DBG_VALUE $rbp, 0, !36, !DIExpression(DW_OP_constu, 48, DW_OP_minus)
|
||||
# CHECK: DBG_VALUE $rbp, 0, !37, !DIExpression(DW_OP_constu, 44, DW_OP_minus), debug-location !58
|
||||
# CHECK-NOT: DBG_VALUE $rbp, 0, !36, !DIExpression(DW_OP_constu, 48, DW_OP_minus), debug-location !57
|
||||
|
||||
--- |
|
||||
; ModuleID = '<stdin>'
|
||||
@@ -283,7 +283,7 @@ body: |
|
||||
$r13 = MOV64rr $rax
|
||||
renamable $ecx = XOR32rr undef $ecx, undef $ecx, implicit-def dead $eflags
|
||||
renamable $r13 = AND64rr killed renamable $r13, renamable $r14, implicit-def $eflags
|
||||
JCC_1 %bb.9, 4, implicit $eflags, debug-location !57
|
||||
JCC_1 %bb.9, 4, implicit $eflags
|
||||
|
||||
bb.1.if.end:
|
||||
successors: %bb.2(0x30000000), %bb.3(0x50000000)
|
||||
@@ -301,7 +301,7 @@ body: |
|
||||
$r12 = MOV64rr $rax
|
||||
$r15 = MOV64rr $r12
|
||||
renamable $r15 = AND64ri8 killed renamable $r15, -123, implicit-def $eflags
|
||||
JCC_1 %bb.2, 4, implicit $eflags, debug-location !57
|
||||
JCC_1 %bb.2, 4, implicit $eflags
|
||||
|
||||
bb.3.private.exit:
|
||||
successors: %bb.9(0x30000000), %bb.4(0x50000000)
|
||||
@@ -316,7 +316,7 @@ body: |
|
||||
CALL64pcrel32 @func4, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit-def $rsp, implicit-def $ssp, implicit-def $eax
|
||||
renamable $ecx = MOV32ri 1
|
||||
TEST32rr killed renamable $eax, renamable $eax, implicit-def $eflags
|
||||
JCC_1 %bb.9, 4, implicit $eflags, debug-location !57
|
||||
JCC_1 %bb.9, 4, implicit $eflags
|
||||
|
||||
bb.4.if.then8:
|
||||
successors: %bb.8(0x30000000), %bb.5(0x50000000)
|
||||
@@ -327,21 +327,21 @@ body: |
|
||||
CALL64pcrel32 @func5, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit $esi, implicit-def $rsp, implicit-def $ssp
|
||||
renamable $rax = MOV64rm killed renamable $r13, 1, $noreg, 8, $noreg :: (load 8 from %ir.13)
|
||||
TEST64rr renamable $rax, renamable $rax, implicit-def $eflags
|
||||
JCC_1 %bb.8, 4, implicit $eflags, debug-location !57
|
||||
JCC_1 %bb.8, 4, implicit $eflags
|
||||
|
||||
bb.5.land.lhs.true:
|
||||
successors: %bb.6(0x30000000), %bb.7(0x50000000)
|
||||
liveins: $rax, $r12, $r15
|
||||
|
||||
CMP32mi8 renamable $r15, 1, $noreg, 0, $noreg, 0, implicit-def $eflags :: (load 4 from %ir.tot_perf2, align 8)
|
||||
JCC_1 %bb.7, 5, implicit $eflags, debug-location !57
|
||||
JCC_1 %bb.7, 5, implicit $eflags
|
||||
|
||||
bb.6.lor.lhs.false:
|
||||
successors: %bb.8(0x30000000), %bb.7(0x50000000)
|
||||
liveins: $rax, $r12, $r15
|
||||
|
||||
CMP32mi8 killed renamable $r15, 1, $noreg, 4, $noreg, 0, implicit-def $eflags :: (load 4 from %ir.tot_bw)
|
||||
JCC_1 %bb.8, 4, implicit $eflags, debug-location !57
|
||||
JCC_1 %bb.8, 4, implicit $eflags
|
||||
|
||||
bb.7.if.then14:
|
||||
successors: %bb.8(0x80000000)
|
||||
@@ -350,13 +350,13 @@ body: |
|
||||
renamable $rdx = MOV64rm killed renamable $rax, 1, $noreg, 8, $noreg :: (load 8 from %ir.20)
|
||||
$rdi = MOV64rr killed $r12
|
||||
$esi = MOV32rm $rbp, 1, $noreg, -44, $noreg :: (load 4 from %stack.1)
|
||||
CALL64pcrel32 @func6, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit $esi, implicit $rdx, implicit-def $rsp, implicit-def $ssp, debug-location !57
|
||||
CALL64pcrel32 @func6, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit $esi, implicit $rdx, implicit-def $rsp, implicit-def $ssp
|
||||
|
||||
bb.8.cleanup:
|
||||
successors: %bb.9(0x80000000)
|
||||
|
||||
renamable $ecx = MOV32ri 1
|
||||
JMP_1 %bb.9, debug-location !57
|
||||
JMP_1 %bb.9
|
||||
|
||||
bb.2.if.then3:
|
||||
successors: %bb.9(0x80000000)
|
||||
@@ -369,7 +369,7 @@ body: |
|
||||
$edx = MOV32ri 5
|
||||
$r8d = MOV32rm $rbp, 1, $noreg, -48, $noreg :: (load 4 from %stack.0)
|
||||
CALL64pcrel32 @func3, csr_64, implicit $rsp, implicit $ssp, implicit $edi, implicit $esi, implicit $edx, implicit $rcx, implicit $r8d, implicit-def $rsp, implicit-def $ssp
|
||||
renamable $ecx = XOR32rr undef $ecx, undef $ecx, implicit-def dead $eflags, debug-location !57
|
||||
renamable $ecx = XOR32rr undef $ecx, undef $ecx, implicit-def dead $eflags
|
||||
|
||||
bb.9.cleanup:
|
||||
liveins: $ecx
|
||||
@@ -382,6 +382,6 @@ body: |
|
||||
$r14 = POP64r implicit-def $rsp, implicit $rsp
|
||||
$r15 = POP64r implicit-def $rsp, implicit $rsp
|
||||
$rbp = POP64r implicit-def $rsp, implicit $rsp
|
||||
RETQ $eax, debug-location !57
|
||||
RETQ $eax
|
||||
|
||||
...
|
||||
|
||||
@@ -31,9 +31,9 @@
|
||||
# DBG_VALUE for variables "x", "y" and "z" are extended into %bb.9 from its
|
||||
# predecessors %bb.0, %bb.2 and %bb.8.
|
||||
# CHECK: bb.9.for.end:
|
||||
# CHECK-DAG: DBG_VALUE $edi, $noreg, ![[X_VAR]], !DIExpression()
|
||||
# CHECK-DAG: DBG_VALUE $esi, $noreg, ![[Y_VAR]], !DIExpression()
|
||||
# CHECK-DAG: DBG_VALUE $edx, $noreg, ![[Z_VAR]], !DIExpression()
|
||||
# CHECK-DAG: DBG_VALUE $edi, $noreg, ![[X_VAR]], !DIExpression(), debug-location !{{[0-9]+}}
|
||||
# CHECK-DAG: DBG_VALUE $esi, $noreg, ![[Y_VAR]], !DIExpression(), debug-location !{{[0-9]+}}
|
||||
# CHECK-DAG: DBG_VALUE $edx, $noreg, ![[Z_VAR]], !DIExpression(), debug-location !{{[0-9]+}}
|
||||
# CHECK: RET
|
||||
|
||||
--- |
|
||||
|
||||
@@ -1,5 +1,4 @@
|
||||
# RUN: llc %s -mtriple=x86_64-unknown-unknown -o - -run-pass=livedebugvalues | FileCheck %s --implicit-check-not=DBG_VALUE
|
||||
# RUN: llc %s -mtriple=x86_64-unknown-unknown -o - -run-pass=livedebugvalues -experimental-debug-variable-locations | FileCheck %s -check-prefix=NEWLDV --implicit-check-not=DBG_VALUE
|
||||
#
|
||||
# Test that the DBG_VALUE of ecx below does not get propagated. It is considered
|
||||
# live-in on LiveDebugValues' first pass through the loop, but on the second it
|
||||
@@ -18,13 +17,6 @@
|
||||
# CHECK-LABEL: bb.1.loop:
|
||||
# CHECK: $ebx = COPY killed $ecx
|
||||
# CHECK-NEXT: DBG_VALUE
|
||||
#
|
||||
# This doesn't occur under value-tracking LiveDebugValues though.
|
||||
#
|
||||
# NEWLDV-LABEL: name: foo
|
||||
# NEWLDV-LABEL: bb.0.entry:
|
||||
# NEWLDV: $ecx = MOV32ri 0
|
||||
# NEWLDV-NEXT: DBG_VALUE
|
||||
|
||||
--- |
|
||||
source_filename = "live-debug-values-remove-range.ll"
|
||||
@@ -82,30 +74,30 @@ body: |
|
||||
CFI_INSTRUCTION def_cfa_offset 16
|
||||
CFI_INSTRUCTION offset $rbx, -16
|
||||
$ebx = MOV32rr $edi
|
||||
$eax = MOV32ri 0, debug-location !10
|
||||
$ecx = MOV32ri 0, debug-location !10
|
||||
$eax = MOV32ri 0
|
||||
$ecx = MOV32ri 0
|
||||
DBG_VALUE $ecx, $noreg, !9, !DIExpression(), debug-location !10
|
||||
$edi = MOV32ri 0, debug-location !10
|
||||
$esi = MOV32ri 0, debug-location !10
|
||||
$edi = MOV32ri 0
|
||||
$esi = MOV32ri 0
|
||||
|
||||
bb.1.loop:
|
||||
successors: %bb.1, %bb.2
|
||||
liveins: $ebx, $eax, $ecx, $edi, $esi
|
||||
|
||||
$eax = COPY $ecx, debug-location !10
|
||||
$ebx = COPY killed $ecx, debug-location !10
|
||||
$ecx = COPY killed $edi, debug-location !10
|
||||
$edi = COPY killed $esi, debug-location !10
|
||||
$esi = MOV32ri 1, debug-location !10
|
||||
$eax = COPY $ecx
|
||||
$ebx = COPY killed $ecx
|
||||
$ecx = COPY killed $edi
|
||||
$edi = COPY killed $esi
|
||||
$esi = MOV32ri 1
|
||||
TEST8ri killed renamable $al, 1, implicit-def $eflags
|
||||
JCC_1 %bb.1, 5, implicit killed $eflags, debug-location !10
|
||||
JCC_1 %bb.1, 5, implicit killed $eflags
|
||||
|
||||
bb.2.exit:
|
||||
liveins: $ebx
|
||||
|
||||
$eax = MOV32rr killed $ebx, debug-location !10
|
||||
$eax = MOV32rr killed $ebx
|
||||
$rbx = frame-destroy POP64r implicit-def $rsp, implicit $rsp
|
||||
CFI_INSTRUCTION def_cfa_offset 8
|
||||
RETQ $eax, debug-location !10
|
||||
RETQ $eax
|
||||
|
||||
...
|
||||
|
||||
@@ -35,7 +35,7 @@
|
||||
# CHECK: ![[N_VAR:[0-9]+]] = !DILocalVariable(name: "n",{{.*}})
|
||||
#
|
||||
# CHECK: bb.5.if.end.7:
|
||||
# CHECK: DBG_VALUE $ebx, $noreg, ![[N_VAR]], !DIExpression()
|
||||
# CHECK: DBG_VALUE $ebx, $noreg, ![[N_VAR]], !DIExpression(), debug-location !{{[0-9]+}}
|
||||
|
||||
|
||||
--- |
|
||||
|
||||
@@ -6,11 +6,11 @@
|
||||
; CHECK-LABEL: bb.0.entry:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.1.bb1:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.2.bb2:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.3.bb3:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
|
||||
define i32 @_Z8bb_to_bb() local_unnamed_addr !dbg !12 {
|
||||
entry:
|
||||
|
||||
@@ -5,13 +5,13 @@
|
||||
; a diamond that doesn't move or clobber their locations.
|
||||
|
||||
; CHECK-LABEL: bb.0.entry:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.1.bb1:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.2.bb2:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.3.bb3:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
|
||||
define i32 @_Z8bb_to_bb() local_unnamed_addr !dbg !12 {
|
||||
entry:
|
||||
|
||||
@@ -5,12 +5,12 @@
|
||||
; a diamond when the location is clobbered and not into the successor block.
|
||||
|
||||
; CHECK-LABEL: bb.0.entry:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.1.bb1:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-NEXT: $ebx = MOV32ri 0, debug-location !17
|
||||
; CHECK-LABEL: bb.2.bb2:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-NEXT: $ebx = MOV32ri 0, debug-location !17
|
||||
|
||||
define i32 @_Z8bb_to_bb() local_unnamed_addr !dbg !12 {
|
||||
|
||||
@@ -5,17 +5,17 @@
|
||||
; diamond CFG when the location is moved by another instruction.
|
||||
|
||||
; CHECK-LABEL: bb.0.entry:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.1.bb1:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-NEXT: $eax = MOV32ri 0, debug-location !17
|
||||
; CHECK-NEXT: DBG_VALUE $eax, $noreg, !16, !DIExpression()
|
||||
; CHECK-NEXT: DBG_VALUE $eax, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.2.bb2:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-NEXT: $eax = MOV32ri 0, debug-location !17
|
||||
; CHECK-NEXT: DBG_VALUE $eax, $noreg, !16, !DIExpression()
|
||||
; CHECK-NEXT: DBG_VALUE $eax, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.3.bb3:
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression(), debug-location !17
|
||||
|
||||
define i32 @_Z8bb_to_bb() local_unnamed_addr !dbg !12 {
|
||||
entry:
|
||||
|
||||
@@ -5,11 +5,11 @@
|
||||
; of a diamond CFG that clobbers its location.
|
||||
|
||||
; CHECK-LABEL: bb.0.entry:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.1.bb1:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.2.bb2:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
|
||||
define i32 @_Z8bb_to_bb() local_unnamed_addr !dbg !12 {
|
||||
entry:
|
||||
|
||||
@@ -5,13 +5,13 @@
|
||||
; of a diamond CFG that moves its location.
|
||||
|
||||
; CHECK-LABEL: bb.0.entry:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.1.bb1:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-NEXT: $eax = MOV32ri 0, debug-location !17
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.2.bb2:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
|
||||
define i32 @_Z8bb_to_bb() local_unnamed_addr !dbg !12 {
|
||||
entry:
|
||||
|
||||
@@ -5,13 +5,13 @@
|
||||
; loop that doesn't move or clobber its location.
|
||||
|
||||
; CHECK-LABEL: bb.0.entry:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.1.bb1:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.2.bb2:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.3.bb3:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
|
||||
define i32 @_Z8bb_to_bb() local_unnamed_addr !dbg !12 {
|
||||
entry:
|
||||
|
||||
@@ -5,13 +5,13 @@
|
||||
; sequential CFG.
|
||||
|
||||
; CHECK-LABEL: bb.0.entry:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.1.bb1:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.2.bb2:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.3.bb3:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
|
||||
define i32 @_Z8bb_to_bb() local_unnamed_addr !dbg !12 {
|
||||
entry:
|
||||
|
||||
@@ -5,9 +5,9 @@
|
||||
; control flow when it's location is clobbered.
|
||||
|
||||
; CHECK-LABEL: bb.0.entry:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.1.bb1:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
|
||||
define i32 @_Z8bb_to_bb() local_unnamed_addr !dbg !12 {
|
||||
entry:
|
||||
|
||||
@@ -5,13 +5,13 @@
|
||||
; no control flow when a location is moved and then clobbered.
|
||||
|
||||
; CHECK-LABEL: bb.0.entry:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.1.bb1:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-NEXT: $eax = MOV32ri 0, debug-location !17
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.2.bb2:
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.3.bb3:
|
||||
|
||||
define i32 @_Z8bb_to_bb() local_unnamed_addr !dbg !12 {
|
||||
|
||||
@@ -1,113 +0,0 @@
|
||||
--- |
|
||||
; RUN: llc %s -march=x86-64 -run-pass=livedebugvalues -o - -experimental-debug-variable-locations -emulate-old-livedebugvalues=0 | FileCheck %s -implicit-check-not=DBG_VALUE
|
||||
|
||||
; Sometimes, variables can have multiple locations, and when control flow
|
||||
; merges LiveDebugValues has a hard time picking which one the variable lives
|
||||
; in. Test two of these scenarios that old LiveDebugValues can't handle: when
|
||||
; a value is in two registers, and when a value is both in a register and
|
||||
; on the stack.
|
||||
|
||||
; In a register:
|
||||
|
||||
; CHECK-LABEL: bb.0.entry:
|
||||
; CHECK: DBG_VALUE $rdi, $noreg, !16, !DIExpression()
|
||||
; CHECK-LABEL: bb.1.bb1:
|
||||
; CHECK: DBG_VALUE $rbp, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $rbp, $noreg, !16, !DIExpression()
|
||||
; CHECK-LABEL: bb.2.bb2:
|
||||
; CHECK: DBG_VALUE $rbp, $noreg, !16, !DIExpression()
|
||||
; CHECK-LABEL: bb.3.bb3:
|
||||
; CHECK: DBG_VALUE $rbp, $noreg, !16, !DIExpression()
|
||||
|
||||
; On the stack: we move from $rbp to a stack slot in bb4, but join back on
|
||||
; $rbp in bb6.
|
||||
|
||||
; CHECK-LABEL: bb.4:
|
||||
; CHECK: DBG_VALUE $rbp, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $rsp, 0, !16, !DIExpression()
|
||||
; CHECK-LABEL: bb.5:
|
||||
; CHECK: DBG_VALUE $rbp, $noreg, !16, !DIExpression()
|
||||
; CHECK-LABEL: bb.6:
|
||||
; CHECK: DBG_VALUE $rbp, $noreg, !16, !DIExpression()
|
||||
|
||||
declare i64 @bees(i64 %arg);
|
||||
|
||||
define i32 @_Z8bb_to_bb(i64 %arg) local_unnamed_addr !dbg !12 {
|
||||
entry:
|
||||
br label %bb1, !dbg !17
|
||||
bb1:
|
||||
br label %bb2, !dbg !17
|
||||
bb2:
|
||||
br label %bb3, !dbg !17
|
||||
bb3:
|
||||
ret i32 0, !dbg !17
|
||||
}
|
||||
|
||||
!llvm.dbg.cu = !{!0}
|
||||
!llvm.module.flags = !{!7, !8, !9, !10}
|
||||
!llvm.ident = !{!11}
|
||||
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 10.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !3, debugInfoForProfiling: true, nameTableKind: None)
|
||||
!1 = !DIFile(filename: "main.cpp", directory: "F:\")
|
||||
!2 = !{}
|
||||
!3 = !{!4}
|
||||
!4 = !DIGlobalVariableExpression(var: !5, expr: !DIExpression())
|
||||
!5 = distinct !DIGlobalVariable(name: "start", scope: !0, file: !1, line: 4, type: !6, isLocal: false, isDefinition: true)
|
||||
!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
|
||||
!7 = !{i32 2, !"Dwarf Version", i32 4}
|
||||
!8 = !{i32 2, !"Debug Info Version", i32 3}
|
||||
!9 = !{i32 1, !"wchar_size", i32 2}
|
||||
!10 = !{i32 7, !"PIC Level", i32 2}
|
||||
!11 = !{!"clang version 10.0.0"}
|
||||
!12 = distinct !DISubprogram(name: "bb_to_bb", linkageName: "bb_to_bb", scope: !1, file: !1, line: 6, type: !13, scopeLine: 6, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !15)
|
||||
!13 = !DISubroutineType(types: !14)
|
||||
!14 = !{!6, !6}
|
||||
!15 = !{!16}
|
||||
!16 = !DILocalVariable(name: "myVar", scope: !12, file: !1, line: 7, type: !6)
|
||||
!17 = !DILocation(line: 10, scope: !12)
|
||||
|
||||
...
|
||||
---
|
||||
name: _Z8bb_to_bb
|
||||
tracksRegLiveness: true
|
||||
liveins:
|
||||
- { reg: '$rdi', virtual-reg: '' }
|
||||
stack:
|
||||
- { id: 0, name: '', type: spill-slot, offset: -8, size: 8, alignment: 8,
|
||||
stack-id: default, callee-saved-register: '', callee-saved-restored: true,
|
||||
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
|
||||
body: |
|
||||
bb.0.entry:
|
||||
liveins: $rdi
|
||||
successors: %bb.1, %bb.2
|
||||
DBG_VALUE $rdi, $noreg, !16, !DIExpression(), debug-location !17
|
||||
$rbp = MOV64rr $rdi, debug-location !17
|
||||
dead $rcx = MOV64ri 0, debug-location !17
|
||||
CALL64pcrel32 @bees, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit-def $rsp, implicit-def $ssp, implicit-def $rax, debug-location !17
|
||||
CMP64ri8 renamable $rax, 1, implicit-def $eflags, debug-location !17
|
||||
JCC_1 %bb.2, 4, implicit killed $eflags, debug-location !17
|
||||
bb.1.bb1:
|
||||
liveins: $rax, $rbp
|
||||
successors: %bb.3
|
||||
$rbp = MOV64ri 0, debug-location !17
|
||||
DBG_VALUE $rbp, $noreg, !16, !DIExpression(), debug-location !17
|
||||
JMP_1 %bb.3
|
||||
bb.2.bb2:
|
||||
liveins: $rax, $rbp
|
||||
successors: %bb.3
|
||||
$rax = MOV64ri 0, debug-location !17
|
||||
bb.3.bb3:
|
||||
liveins: $rax, $rbp
|
||||
$rdi = MOV64rr $rbp, debug-location !17
|
||||
CALL64pcrel32 @bees, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit-def $rsp, implicit-def $ssp, implicit-def $rax, debug-location !17
|
||||
CMP64ri8 renamable $rax, 1, implicit-def $eflags, debug-location !17
|
||||
JCC_1 %bb.5, 4, implicit killed $eflags, debug-location !17
|
||||
bb.4:
|
||||
liveins: $rax, $rbp
|
||||
MOV64mr $rsp, 1, $noreg, 8, $noreg, killed renamable $rbp :: (store 8 into %stack.0)
|
||||
JMP_1 %bb.6
|
||||
bb.5:
|
||||
liveins: $rax, $rbp
|
||||
bb.6:
|
||||
liveins: $rax, $rbp
|
||||
RETQ $rax, debug-location !17
|
||||
...
|
||||
@@ -5,15 +5,15 @@
|
||||
; break.
|
||||
|
||||
; CHECK-LABEL: bb.0.entry:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.1.bb1:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.2.bb2:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.3.bb3:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.4.bb4:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
|
||||
define i32 @_Z8bb_to_bb() local_unnamed_addr !dbg !12 {
|
||||
entry:
|
||||
|
||||
@@ -5,17 +5,17 @@
|
||||
; diamond pattern and beyond.
|
||||
|
||||
; CHECK-LABEL: bb.0.entry:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.1.bb1:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.2.bb2:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.3.bb3:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.4.bb4:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.5.bb5:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
|
||||
define i32 @_Z8bb_to_bb() local_unnamed_addr !dbg !12 {
|
||||
entry:
|
||||
|
||||
@@ -5,17 +5,17 @@
|
||||
; diamond pattern but not beyond.
|
||||
|
||||
; CHECK-LABEL: bb.0.entry:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.1.bb1:
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.2.bb2:
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.3.bb3:
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.4.bb4:
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.5.bb5:
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression(), debug-location !17
|
||||
|
||||
define i32 @_Z8bb_to_bb() local_unnamed_addr !dbg !12 {
|
||||
entry:
|
||||
|
||||
@@ -5,15 +5,15 @@
|
||||
; backedges and beyond.
|
||||
|
||||
; CHECK-LABEL: bb.0.entry:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.1.bb1:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.2.bb2:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.3.bb3:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.4.bb4:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
|
||||
define i32 @_Z8bb_to_bb() local_unnamed_addr !dbg !12 {
|
||||
entry:
|
||||
|
||||
@@ -4,17 +4,17 @@
|
||||
; Check that DBG_VALUE instructions are propagated into loops within loops.
|
||||
|
||||
; CHECK-LABEL: bb.0.entry:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.1.bb1:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.2.bb2:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.3.bb3:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.4.bb4:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.5.bb5:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
|
||||
define i32 @_Z8bb_to_bb() local_unnamed_addr !dbg !12 {
|
||||
entry:
|
||||
|
||||
@@ -5,9 +5,9 @@
|
||||
; loops that move their locations.
|
||||
|
||||
; CHECK-LABEL: bb.0.entry:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.3.bb3:
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression(), debug-location !17
|
||||
|
||||
define i32 @_Z8bb_to_bb() local_unnamed_addr !dbg !12 {
|
||||
entry:
|
||||
|
||||
@@ -5,11 +5,11 @@
|
||||
; loops that move their locations.
|
||||
|
||||
; CHECK-LABEL: bb.0.entry:
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.4.bb4:
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression(), debug-location !17
|
||||
; CHECK-LABEL: bb.5.bb5:
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression()
|
||||
; CHECK: DBG_VALUE $eax, $noreg, !16, !DIExpression(), debug-location !17
|
||||
|
||||
define i32 @_Z8bb_to_bb() local_unnamed_addr !dbg !12 {
|
||||
entry:
|
||||
|
||||
@@ -1,196 +0,0 @@
|
||||
--- |
|
||||
; RUN: llc %s -march=x86-64 -run-pass=livedebugvalues -o - -experimental-debug-variable-locations | FileCheck %s -implicit-check-not=DBG_VALUE
|
||||
|
||||
; The MIR below represents a pathalogical case for value-tracking
|
||||
; LiveDebugValues. The code structure is eight nested loops, with loop heads
|
||||
; from bb.1 to bb.8, a central block bb.9 that does nothing, and loop ends
|
||||
; from bb.10 to bb.17. The CMP's and jumps might be broken; the only
|
||||
; important part is that it looks like nested loops to LiveDebugValues.
|
||||
;
|
||||
; The variable location is always $rsi, which enters the function live.
|
||||
; There's also a def of $rsi in bb.14, in a loop tail, half way into the
|
||||
; loop nest.s.
|
||||
;
|
||||
; This presents a serious problem: the outer four loops each implicitly have
|
||||
; a PHI value for $rsi, because the block could be entered on a path straight
|
||||
; from entry, or from bb.14 where $rsi is def'd. While the innermost four
|
||||
; loops have a value of $rsi that is live-through each loop from bb.5
|
||||
; onwards.
|
||||
;
|
||||
; Value-tracking LiveDebugValues _must_ correctly identify each PHI value.
|
||||
; Observe the DBG_VALUE in bb.2: this variable location musn't be propagated
|
||||
; any further, because there's a path to either successor that goes through
|
||||
; bb.14 where the value is overwritten.Value tracking needs to identify the
|
||||
; PHI value on entry to the block; and that each successor has a different
|
||||
; PHI value in that register.
|
||||
;
|
||||
; Likewise, we mustn't identify values as PHIs which aren't. Entering bb.5
|
||||
; has a PHI value (from bb.4) in $rsi. There are no paths to bb.5 that pass
|
||||
; through the clobbering bb.14, which don't also pass through bb.4: thus
|
||||
; that value is live-through the innermost four loops. If we
|
||||
; over-approximated where PHIs happened, we would lose variable location
|
||||
; coverage here, by not propagating the variable location through the inner
|
||||
; loops.
|
||||
;
|
||||
; Getting this right requires the lattice descent (described in the
|
||||
; implementation) to search loop head PHI values, until one is found that is
|
||||
; live-through a loop.
|
||||
|
||||
; This location in bb.2 should not be propagated further,
|
||||
; CHECK-LABEL: bb.2:
|
||||
; CHECK: DBG_VALUE $rsi, $noreg
|
||||
|
||||
; This location should be live through the inner loops, til bb.14
|
||||
; CHECK-LABEL: bb.5:
|
||||
; CHECK: DBG_VALUE $rsi, $noreg
|
||||
; CHECK-LABEL: bb.6:
|
||||
; CHECK: DBG_VALUE $rsi, $noreg
|
||||
; CHECK-LABEL: bb.7:
|
||||
; CHECK: DBG_VALUE $rsi, $noreg
|
||||
; CHECK-LABEL: bb.8:
|
||||
; CHECK: DBG_VALUE $rsi, $noreg
|
||||
; CHECK-LABEL: bb.9:
|
||||
; CHECK: DBG_VALUE $rsi, $noreg
|
||||
; CHECK-LABEL: bb.10:
|
||||
; CHECK: DBG_VALUE $rsi, $noreg
|
||||
; CHECK-LABEL: bb.11:
|
||||
; CHECK: DBG_VALUE $rsi, $noreg
|
||||
; CHECK-LABEL: bb.12:
|
||||
; CHECK: DBG_VALUE $rsi, $noreg
|
||||
; CHECK-LABEL: bb.13:
|
||||
; CHECK: DBG_VALUE $rsi, $noreg
|
||||
|
||||
declare i64 @bees(i64 %arg);
|
||||
|
||||
define i32 @chiasm(i64 %arg) local_unnamed_addr !dbg !12 {
|
||||
entry:
|
||||
br label %bb1, !dbg !17
|
||||
bb1:
|
||||
br label %bb2, !dbg !17
|
||||
bb2:
|
||||
br label %bb3, !dbg !17
|
||||
bb3:
|
||||
ret i32 0, !dbg !17
|
||||
}
|
||||
|
||||
!llvm.dbg.cu = !{!0}
|
||||
!llvm.module.flags = !{!7, !8, !9, !10}
|
||||
!llvm.ident = !{!11}
|
||||
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 10.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !3, debugInfoForProfiling: true, nameTableKind: None)
|
||||
!1 = !DIFile(filename: "main.cpp", directory: "F:\")
|
||||
!2 = !{}
|
||||
!3 = !{!4}
|
||||
!4 = !DIGlobalVariableExpression(var: !5, expr: !DIExpression())
|
||||
!5 = distinct !DIGlobalVariable(name: "start", scope: !0, file: !1, line: 4, type: !6, isLocal: false, isDefinition: true)
|
||||
!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
|
||||
!7 = !{i32 2, !"Dwarf Version", i32 4}
|
||||
!8 = !{i32 2, !"Debug Info Version", i32 3}
|
||||
!9 = !{i32 1, !"wchar_size", i32 2}
|
||||
!10 = !{i32 7, !"PIC Level", i32 2}
|
||||
!11 = !{!"clang version 10.0.0"}
|
||||
!12 = distinct !DISubprogram(name: "bb_to_bb", linkageName: "bb_to_bb", scope: !1, file: !1, line: 6, type: !13, scopeLine: 6, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !15)
|
||||
!13 = !DISubroutineType(types: !14)
|
||||
!14 = !{!6, !6}
|
||||
!15 = !{!16}
|
||||
!16 = !DILocalVariable(name: "myVar", scope: !12, file: !1, line: 7, type: !6)
|
||||
!17 = !DILocation(line: 10, scope: !12)
|
||||
|
||||
...
|
||||
---
|
||||
name: chiasm
|
||||
tracksRegLiveness: true
|
||||
liveins:
|
||||
- { reg: '$rdi', virtual-reg: '' }
|
||||
stack:
|
||||
- { id: 0, name: '', type: spill-slot, offset: -8, size: 8, alignment: 8,
|
||||
stack-id: default, callee-saved-register: '', callee-saved-restored: true,
|
||||
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
|
||||
body: |
|
||||
bb.0.entry:
|
||||
liveins: $rdi, $rsi
|
||||
|
||||
bb.1:
|
||||
liveins: $rsi, $rdi
|
||||
CMP64ri8 renamable $rdi, 1, implicit-def $eflags, debug-location !17
|
||||
JCC_1 %bb.17, 4, implicit $eflags, debug-location !17
|
||||
|
||||
bb.2:
|
||||
liveins: $rsi, $rdi
|
||||
DBG_VALUE $rsi, $noreg, !16, !DIExpression(), debug-location !17
|
||||
CMP64ri8 renamable $rdi, 2, implicit-def $eflags, debug-location !17
|
||||
JCC_1 %bb.16, 4, implicit $eflags, debug-location !17
|
||||
|
||||
bb.3:
|
||||
liveins: $rsi, $rdi
|
||||
CMP64ri8 renamable $rdi, 3, implicit-def $eflags, debug-location !17
|
||||
JCC_1 %bb.15, 4, implicit $eflags, debug-location !17
|
||||
|
||||
bb.4:
|
||||
liveins: $rsi, $rdi
|
||||
CMP64ri8 renamable $rdi, 4, implicit-def $eflags, debug-location !17
|
||||
JCC_1 %bb.14, 4, implicit $eflags, debug-location !17
|
||||
|
||||
bb.5:
|
||||
liveins: $rsi, $rdi
|
||||
DBG_VALUE $rsi, $noreg, !16, !DIExpression(), debug-location !17
|
||||
CMP64ri8 renamable $rdi, 4, implicit-def $eflags, debug-location !17
|
||||
JCC_1 %bb.13, 4, implicit $eflags, debug-location !17
|
||||
|
||||
bb.6:
|
||||
liveins: $rsi, $rdi
|
||||
CMP64ri8 renamable $rdi, 4, implicit-def $eflags, debug-location !17
|
||||
JCC_1 %bb.12, 4, implicit $eflags, debug-location !17
|
||||
|
||||
bb.7:
|
||||
liveins: $rsi, $rdi
|
||||
CMP64ri8 renamable $rdi, 4, implicit-def $eflags, debug-location !17
|
||||
JCC_1 %bb.11, 4, implicit $eflags, debug-location !17
|
||||
|
||||
bb.8:
|
||||
liveins: $rsi, $rdi
|
||||
CMP64ri8 renamable $rdi, 4, implicit-def $eflags, debug-location !17
|
||||
JCC_1 %bb.10, 4, implicit $eflags, debug-location !17
|
||||
|
||||
bb.9:
|
||||
liveins: $rsi, $rdi, $eflags
|
||||
;$rsi = MOV64ri 0, debug-location !17
|
||||
;JMP_1 %bb.1, debug-location !17
|
||||
|
||||
bb.10:
|
||||
liveins: $rsi, $rdi, $eflags
|
||||
JCC_1 %bb.8, 4, implicit $eflags, debug-location !17
|
||||
|
||||
bb.11:
|
||||
liveins: $rsi, $rdi, $eflags
|
||||
JCC_1 %bb.7, 4, implicit $eflags, debug-location !17
|
||||
|
||||
bb.12:
|
||||
liveins: $rsi, $rdi, $eflags
|
||||
JCC_1 %bb.6, 4, implicit $eflags, debug-location !17
|
||||
|
||||
bb.13:
|
||||
liveins: $rsi, $rdi, $eflags
|
||||
JCC_1 %bb.5, 4, implicit $eflags, debug-location !17
|
||||
|
||||
bb.14:
|
||||
liveins: $rsi, $rdi, $eflags
|
||||
$rsi = MOV64ri 0, debug-location !17
|
||||
JCC_1 %bb.4, 4, implicit $eflags, debug-location !17
|
||||
|
||||
bb.15:
|
||||
liveins: $rsi, $rdi, $eflags
|
||||
JCC_1 %bb.3, 4, implicit $eflags, debug-location !17
|
||||
|
||||
bb.16:
|
||||
liveins: $rsi, $rdi, $eflags
|
||||
JCC_1 %bb.2, 4, implicit $eflags, debug-location !17
|
||||
|
||||
bb.17:
|
||||
liveins: $rsi, $rdi, $eflags
|
||||
JCC_1 %bb.1, 4, implicit $eflags, debug-location !17
|
||||
|
||||
bb.18:
|
||||
liveins: $rsi, $rdi, $eflags
|
||||
RETQ
|
||||
|
||||
...
|
||||
Reference in New Issue
Block a user