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clang-p2996/llvm/test/CodeGen/ARM/ARMLoadStoreDBG.mir
Matthias Braun 8940114f61 MIParser/MIRPrinter: Compute block successors if not explicitely specified 
- MIParser: If the successor list is not specified successors will be
  added based on basic block operands in the block and possible
  fallthrough.

- MIRPrinter: Adds a new `simplify-mir` option, with that option set:
  Skip printing of block successor lists in cases where the
  parser is guaranteed to reconstruct it. This means we still print the
  list if some successor cannot be determined (happens for example for
  jump tables), if the successor order changes or branch probabilities
  being unequal.

Differential Revision: https://reviews.llvm.org/D31262

llvm-svn: 302289
2017-05-05 21:09:30 +00:00

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# RUN: llc -mtriple thumbv7 -verify-machineinstrs -run-pass arm-ldst-opt %s -o - | FileCheck %s
--- |
; ModuleID = '/Volumes/Data/llvm/test/CodeGen/ARM/sched-it-debug-nodes.ll'
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
target triple = "thumbv7"
%struct.s = type opaque
; Function Attrs: nounwind
define arm_aapcscc i32 @f(%struct.s* %s, i32 %u, i8* %b, i32 %n) #0 !dbg !4 {
entry:
tail call void @llvm.dbg.value(metadata %struct.s* %s, i64 0, metadata !18, metadata !27), !dbg !28
tail call void @llvm.dbg.value(metadata i32 %u, i64 0, metadata !19, metadata !27), !dbg !28
tail call void @llvm.dbg.value(metadata i8* %b, i64 0, metadata !20, metadata !27), !dbg !28
tail call void @llvm.dbg.value(metadata i32 %n, i64 0, metadata !21, metadata !27), !dbg !28
%cmp = icmp ult i32 %n, 4, !dbg !29
br i1 %cmp, label %return, label %if.end, !dbg !31
if.end: ; preds = %entry
tail call arm_aapcscc void @g(%struct.s* %s, i8* %b, i32 %n) #3, !dbg !32
br label %return, !dbg !33
return: ; preds = %if.end, %entry
%retval.0 = phi i32 [ 0, %if.end ], [ -1, %entry ]
ret i32 %retval.0, !dbg !34
}
declare arm_aapcscc void @g(%struct.s*, i8*, i32) #1
; Function Attrs: nounwind readnone
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #2
attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #2 = { nounwind readnone }
attributes #3 = { nounwind }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!22, !23, !24, !25}
!llvm.ident = !{!26}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0 (llvm/trunk 237059)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
!1 = !DIFile(filename: "<stdin>", directory: "/Users/compnerd/Source/llvm")
!2 = !{}
!4 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 9, type: !5, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !17)
!5 = !DISubroutineType(types: !6)
!6 = !{!7, !8, !11, !12, !16}
!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!8 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !9, size: 32, align: 32)
!9 = !DIDerivedType(tag: DW_TAG_typedef, name: "s", file: !1, line: 5, baseType: !10)
!10 = !DICompositeType(tag: DW_TAG_structure_type, name: "s", file: !1, line: 5, flags: DIFlagFwdDecl)
!11 = !DIBasicType(name: "unsigned int", size: 32, align: 32, encoding: DW_ATE_unsigned)
!12 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !13, size: 32, align: 32)
!13 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !14)
!14 = !DIDerivedType(tag: DW_TAG_typedef, name: "uint8_t", file: !1, line: 2, baseType: !15)
!15 = !DIBasicType(name: "unsigned char", size: 8, align: 8, encoding: DW_ATE_unsigned_char)
!16 = !DIDerivedType(tag: DW_TAG_typedef, name: "size_t", file: !1, line: 3, baseType: !11)
!17 = !{!18, !19, !20, !21}
!18 = !DILocalVariable(name: "s", arg: 1, scope: !4, file: !1, line: 9, type: !8)
!19 = !DILocalVariable(name: "u", arg: 2, scope: !4, file: !1, line: 9, type: !11)
!20 = !DILocalVariable(name: "b", arg: 3, scope: !4, file: !1, line: 9, type: !12)
!21 = !DILocalVariable(name: "n", arg: 4, scope: !4, file: !1, line: 9, type: !16)
!22 = !{i32 2, !"Dwarf Version", i32 4}
!23 = !{i32 2, !"Debug Info Version", i32 3}
!24 = !{i32 1, !"wchar_size", i32 4}
!25 = !{i32 1, !"min_enum_size", i32 4}
!26 = !{!"clang version 3.7.0 (llvm/trunk 237059)"}
!27 = !DIExpression()
!28 = !DILocation(line: 9, scope: !4)
!29 = !DILocation(line: 10, scope: !30)
!30 = distinct !DILexicalBlock(scope: !4, file: !1, line: 10)
!31 = !DILocation(line: 10, scope: !4)
!32 = !DILocation(line: 13, scope: !4)
!33 = !DILocation(line: 14, scope: !4)
!34 = !DILocation(line: 15, scope: !4)
...
---
name: f
alignment: 1
exposesReturnsTwice: false
tracksRegLiveness: true
liveins:
- { reg: '%r0' }
- { reg: '%r1' }
- { reg: '%r2' }
- { reg: '%r3' }
calleeSavedRegisters: [ '%lr', '%d8', '%d9', '%d10', '%d11', '%d12', '%d13',
'%d14', '%d15', '%q4', '%q5', '%q6', '%q7', '%r4',
'%r5', '%r6', '%r7', '%r8', '%r9', '%r10', '%r11',
'%s16', '%s17', '%s18', '%s19', '%s20', '%s21',
'%s22', '%s23', '%s24', '%s25', '%s26', '%s27',
'%s28', '%s29', '%s30', '%s31', '%d8_d10', '%d9_d11',
'%d10_d12', '%d11_d13', '%d12_d14', '%d13_d15',
'%q4_q5', '%q5_q6', '%q6_q7', '%q4_q5_q6_q7', '%r4_r5',
'%r6_r7', '%r8_r9', '%r10_r11', '%d8_d9_d10', '%d9_d10_d11',
'%d10_d11_d12', '%d11_d12_d13', '%d12_d13_d14',
'%d13_d14_d15', '%d8_d10_d12', '%d9_d11_d13', '%d10_d12_d14',
'%d11_d13_d15', '%d8_d10_d12_d14', '%d9_d11_d13_d15',
'%d9_d10', '%d11_d12', '%d13_d14', '%d9_d10_d11_d12',
'%d11_d12_d13_d14' ]
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 8
offsetAdjustment: 0
maxAlignment: 4
adjustsStack: true
hasCalls: true
maxCallFrameSize: 0
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
stack:
- { id: 0, type: spill-slot, offset: -4, size: 4, alignment: 4, callee-saved-register: '%lr' }
- { id: 1, type: spill-slot, offset: -8, size: 4, alignment: 4, callee-saved-register: '%r7' }
body: |
bb.0.entry:
liveins: %r0, %r1, %r2, %r3, %lr, %r7
DBG_VALUE debug-use %r0, debug-use _, !18, !27, debug-location !28
DBG_VALUE debug-use %r1, debug-use _, !19, !27, debug-location !28
DBG_VALUE debug-use %r2, debug-use _, !20, !27, debug-location !28
DBG_VALUE debug-use %r3, debug-use _, !21, !27, debug-location !28
t2CMPri %r3, 4, 14, _, implicit-def %cpsr, debug-location !31
t2Bcc %bb.2.if.end, 2, killed %cpsr
bb.1:
liveins: %lr, %r7
DBG_VALUE debug-use %r1, debug-use _, !19, !27, debug-location !28
%r0 = t2MOVi -1, 14, _, _
DBG_VALUE debug-use %r1, debug-use _, !19, !27, debug-location !28
tBX_RET 14, _, implicit %r0, debug-location !34
bb.2.if.end:
liveins: %r0, %r2, %r3, %r7, %lr
%sp = frame-setup t2STMDB_UPD %sp, 14, _, killed %r7, killed %lr
frame-setup CFI_INSTRUCTION def_cfa_offset 8
frame-setup CFI_INSTRUCTION offset %lr, -4
frame-setup CFI_INSTRUCTION offset %r7, -8
DBG_VALUE debug-use %r0, debug-use _, !18, !27, debug-location !28
DBG_VALUE debug-use %r1, debug-use _, !19, !27, debug-location !28
DBG_VALUE debug-use %r2, debug-use _, !20, !27, debug-location !28
DBG_VALUE debug-use %r3, debug-use _, !21, !27, debug-location !28
%r1 = COPY killed %r2, debug-location !32
DBG_VALUE debug-use %r1, debug-use _, !19, !27, debug-location !28
%r2 = COPY killed %r3, debug-location !32
tBL 14, _, @g, csr_aapcs, implicit-def dead %lr, implicit %sp, implicit %r0, implicit %r1, implicit %r2, implicit-def %sp, debug-location !32
%r0 = t2MOVi 0, 14, _, _
%sp = t2LDMIA_UPD %sp, 14, _, def %r7, def %lr
tBX_RET 14, _, implicit %r0, debug-location !34
# Verify that the DBG_VALUE is ignored.
# CHECK: %sp = t2LDMIA_RET %sp, 14, _, def %r7, def %pc, implicit %r0
...
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