d391e4fe84
Be more consistent in the naming convention for the various RET instructions to specify in terms of bitwidth. Helps prevent future scheduler model mismatches like those that were only addressed in D44687. Differential Revision: https://reviews.llvm.org/D113302
86 lines
4.2 KiB
YAML
86 lines
4.2 KiB
YAML
# RUN: llc -debug-entry-values -run-pass=livedebugvalues -march=x86-64 -o - %s| FileCheck %s
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# RUN: llc -force-instr-ref-livedebugvalues=1 -debug-entry-values -run-pass=livedebugvalues -march=x86-64 -o - %s| FileCheck %s
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## Test case:
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## int global;
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## int foo(int p, int q, int r) {
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## global = p + 1;
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## asm __volatile("" : : : "edi", "esi", "edx");
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## return 123;
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## }
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##
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## Verify that DW_OP_LLVM_entry_values are generated for parameters with multiple
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## DBG_VALUEs at entry block.
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# CHECK: DBG_VALUE $edi, $noreg, !{{.*}}, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location {{.*}}
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# CHECK: INLINEASM
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# CHECK-DAG: DBG_VALUE $esi, $noreg, !{{.*}}, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location {{.*}}
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# CHECK-DAG: DBG_VALUE $edx, $noreg, !{{.*}}, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location {{.*}}
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# CHECK $eax = MOV32ri 123
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--- |
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; ModuleID = 'multiple-param-dbg-value-entry.ll'
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source_filename = "multiple-param-dbg-value-entry.c"
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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@global = common dso_local local_unnamed_addr global i32 0, align 4, !dbg !0
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define dso_local i32 @foo(i32 %p, i32 %q, i32 %r) local_unnamed_addr !dbg !11 {
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entry:
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call void @llvm.dbg.value(metadata i32 %p, metadata !15, metadata !DIExpression()), !dbg !18
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call void @llvm.dbg.value(metadata i32 %q, metadata !16, metadata !DIExpression()), !dbg !18
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call void @llvm.dbg.value(metadata i32 %r, metadata !17, metadata !DIExpression()), !dbg !18
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%add = add nsw i32 %p, 1, !dbg !18
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store i32 %add, i32* @global, align 4, !dbg !18
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tail call void asm sideeffect "", "~{edi},~{esi},~{edx},~{dirflag},~{fpsr},~{flags}"(), !dbg !18, !srcloc !19
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ret i32 123, !dbg !18
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}
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!7, !8, !9}
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!llvm.ident = !{!10}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "global", scope: !2, file: !3, line: 8, type: !6, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 9.0.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: None)
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!3 = !DIFile(filename: "multiple-param-dbg-value-entry.c", directory: "/")
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!4 = !{}
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!5 = !{!0}
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!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!7 = !{i32 2, !"Dwarf Version", i32 4}
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!8 = !{i32 2, !"Debug Info Version", i32 3}
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!9 = !{i32 1, !"wchar_size", i32 4}
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!10 = !{!"clang version 9.0.0 "}
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!11 = distinct !DISubprogram(name: "foo", scope: !3, file: !3, line: 9, type: !12, scopeLine: 9, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !14)
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!12 = !DISubroutineType(types: !13)
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!13 = !{!6, !6, !6, !6}
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!14 = !{!15, !16, !17}
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!15 = !DILocalVariable(name: "p", arg: 1, scope: !11, file: !3, line: 9, type: !6)
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!16 = !DILocalVariable(name: "q", arg: 2, scope: !11, file: !3, line: 9, type: !6)
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!17 = !DILocalVariable(name: "r", arg: 3, scope: !11, file: !3, line: 9, type: !6)
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!18 = !DILocation(line: 9, column: 13, scope: !11)
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!19 = !{i32 213}
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...
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---
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name: foo
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alignment: 16
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tracksRegLiveness: true
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liveins:
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- { reg: '$edi' }
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body: |
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bb.0.entry:
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liveins: $edi
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DBG_VALUE $edi, $noreg, !15, !DIExpression(), debug-location !18
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DBG_VALUE $esi, $noreg, !16, !DIExpression(), debug-location !18
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DBG_VALUE $edx, $noreg, !17, !DIExpression(), debug-location !18
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renamable $edi = nsw INC32r killed renamable $edi, implicit-def dead $eflags, debug-location !18
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MOV32mr $rip, 1, $noreg, @global, $noreg, killed renamable $edi, debug-location !18 :: (store (s32) into @global)
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INLINEASM &"", 1, 12, implicit-def dead early-clobber $edi, 12, implicit-def dead early-clobber $esi, 12, implicit-def dead early-clobber $edx, 12, implicit-def dead early-clobber $df, 12, implicit-def dead early-clobber $fpsw, 12, implicit-def dead early-clobber $eflags, !19, debug-location !18
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$eax = MOV32ri 123, debug-location !18
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RET64 killed $eax, debug-location !18
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...
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