[llvm] 06e1289 - [ARM][LowOverheadLoops] Skip debug values
Sam Parker via llvm-commits
llvm-commits at lists.llvm.org
Thu Jan 30 03:55:19 PST 2020
Author: Sam Parker
Date: 2020-01-30T11:51:58Z
New Revision: 06e12893ffb34863eb4fc063220a4d83a94f1301
URL: https://github.com/llvm/llvm-project/commit/06e12893ffb34863eb4fc063220a4d83a94f1301
DIFF: https://github.com/llvm/llvm-project/commit/06e12893ffb34863eb4fc063220a4d83a94f1301.diff
LOG: [ARM][LowOverheadLoops] Skip debug values
While iterating through the loop, don't inspect any dbg values.
Differential Revision: https://reviews.llvm.org/D73688
Added:
llvm/test/CodeGen/Thumb2/LowOverheadLoops/skip-debug.mir
Modified:
llvm/lib/Target/ARM/ARMLowOverheadLoops.cpp
Removed:
################################################################################
diff --git a/llvm/lib/Target/ARM/ARMLowOverheadLoops.cpp b/llvm/lib/Target/ARM/ARMLowOverheadLoops.cpp
index e973202ca3eb..1a99e29663b9 100644
--- a/llvm/lib/Target/ARM/ARMLowOverheadLoops.cpp
+++ b/llvm/lib/Target/ARM/ARMLowOverheadLoops.cpp
@@ -694,7 +694,9 @@ bool ARMLowOverheadLoops::ProcessLoop(MachineLoop *ML) {
// whether we can convert that predicate using tail predication.
for (auto *MBB : reverse(ML->getBlocks())) {
for (auto &MI : *MBB) {
- if (MI.getOpcode() == ARM::t2LoopDec)
+ if (MI.isDebugValue())
+ continue;
+ else if (MI.getOpcode() == ARM::t2LoopDec)
LoLoop.Dec = &MI;
else if (MI.getOpcode() == ARM::t2LoopEnd)
LoLoop.End = &MI;
diff --git a/llvm/test/CodeGen/Thumb2/LowOverheadLoops/skip-debug.mir b/llvm/test/CodeGen/Thumb2/LowOverheadLoops/skip-debug.mir
new file mode 100644
index 000000000000..a9e4fda1a846
--- /dev/null
+++ b/llvm/test/CodeGen/Thumb2/LowOverheadLoops/skip-debug.mir
@@ -0,0 +1,297 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
+# RUN: llc -mtriple=thumbv8.1m.main -mattr=+mve -run-pass=arm-low-overhead-loops %s -o - --verify-machineinstrs | FileCheck %s
+--- |
+ define dso_local arm_aapcs_vfpcc void @skip_debug(i32* nocapture %a, i16* nocapture readonly %b, i32 %N) !dbg !8 {
+ entry:
+ call void @llvm.dbg.value(metadata i32* %a, metadata !17, metadata !DIExpression()), !dbg !23
+ call void @llvm.dbg.value(metadata i16* %b, metadata !18, metadata !DIExpression()), !dbg !23
+ call void @llvm.dbg.value(metadata i32 %N, metadata !19, metadata !DIExpression()), !dbg !23
+ %0 = load i32, i32* %a, align 4, !dbg !24
+ call void @llvm.dbg.value(metadata i32 %0, metadata !20, metadata !DIExpression()), !dbg !23
+ call void @llvm.dbg.value(metadata i32 0, metadata !21, metadata !DIExpression()), !dbg !29
+ %cmp7 = icmp eq i32 %N, 0, !dbg !30
+ %1 = add i32 %N, 3, !dbg !32
+ %2 = lshr i32 %1, 2, !dbg !32
+ %3 = shl nuw i32 %2, 2, !dbg !32
+ %4 = add i32 %3, -4, !dbg !32
+ %5 = lshr i32 %4, 2, !dbg !32
+ %6 = add nuw nsw i32 %5, 1, !dbg !32
+ br i1 %cmp7, label %for.cond.cleanup, label %vector.ph, !dbg !32
+
+ vector.ph: ; preds = %entry
+ %7 = insertelement <4 x i32> <i32 undef, i32 0, i32 0, i32 0>, i32 %0, i32 0, !dbg !32
+ call void @llvm.set.loop.iterations.i32(i32 %6), !dbg !32
+ %8 = shl i32 %5, 2, !dbg !32
+ %9 = sub i32 %N, %8, !dbg !32
+ br label %vector.body, !dbg !32
+
+ vector.body: ; preds = %vector.body, %vector.ph
+ %lsr.iv = phi i16* [ %scevgep, %vector.body ], [ %b, %vector.ph ], !dbg !33
+ %vec.phi = phi <4 x i32> [ %7, %vector.ph ], [ %15, %vector.body ]
+ %10 = phi i32 [ %6, %vector.ph ], [ %16, %vector.body ]
+ %11 = phi i32 [ %N, %vector.ph ], [ %13, %vector.body ]
+ %lsr.iv14 = bitcast i16* %lsr.iv to <4 x i16>*
+ %12 = call <4 x i1> @llvm.arm.mve.vctp32(i32 %11), !dbg !34
+ %13 = sub i32 %11, 4, !dbg !34
+ %wide.masked.load = call <4 x i16> @llvm.masked.load.v4i16.p0v4i16(<4 x i16>* %lsr.iv14, i32 2, <4 x i1> %12, <4 x i16> undef), !dbg !34
+ %14 = sext <4 x i16> %wide.masked.load to <4 x i32>, !dbg !34
+ %15 = sub <4 x i32> %vec.phi, %14, !dbg !38
+ %scevgep = getelementptr i16, i16* %lsr.iv, i32 4, !dbg !33
+ %16 = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %10, i32 1), !dbg !33
+ %17 = icmp ne i32 %16, 0, !dbg !33
+ br i1 %17, label %vector.body, label %middle.block, !dbg !33
+
+ middle.block: ; preds = %vector.body
+ %vec.phi.lcssa = phi <4 x i32> [ %vec.phi, %vector.body ]
+ %.lcssa = phi <4 x i32> [ %15, %vector.body ], !dbg !38
+ %18 = call <4 x i1> @llvm.arm.mve.vctp32(i32 %9), !dbg !34
+ %19 = select <4 x i1> %18, <4 x i32> %.lcssa, <4 x i32> %vec.phi.lcssa, !dbg !38
+ %20 = call i32 @llvm.experimental.vector.reduce.add.v4i32(<4 x i32> %19), !dbg !32
+ br label %for.cond.cleanup, !dbg !42
+
+ for.cond.cleanup: ; preds = %middle.block, %entry
+ %temp.0.lcssa = phi i32 [ %0, %entry ], [ %20, %middle.block ], !dbg !23
+ call void @llvm.dbg.value(metadata i32 %temp.0.lcssa, metadata !20, metadata !DIExpression()), !dbg !23
+ store i32 %temp.0.lcssa, i32* %a, align 4, !dbg !42
+ ret void, !dbg !43
+ }
+
+ declare void @llvm.dbg.value(metadata, metadata, metadata)
+ declare <4 x i16> @llvm.masked.load.v4i16.p0v4i16(<4 x i16>*, i32 immarg, <4 x i1>, <4 x i16>)
+ declare i32 @llvm.experimental.vector.reduce.add.v4i32(<4 x i32>)
+ declare void @llvm.set.loop.iterations.i32(i32)
+ declare i32 @llvm.loop.decrement.reg.i32.i32.i32(i32, i32)
+ declare <4 x i1> @llvm.arm.mve.vctp32(i32)
+
+ !llvm.dbg.cu = !{!0}
+ !llvm.module.flags = !{!3, !4, !5, !6}
+ !llvm.ident = !{!7}
+
+ !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
+ !1 = !DIFile(filename: "skip-debug", directory: "")
+ !2 = !{}
+ !3 = !{i32 7, !"Dwarf Version", i32 4}
+ !4 = !{i32 2, !"Debug Info Version", i32 3}
+ !5 = !{i32 1, !"wchar_size", i32 4}
+ !6 = !{i32 1, !"min_enum_size", i32 4}
+ !7 = !{!""}
+ !8 = distinct !DISubprogram(name: "skip_debug", scope: !1, file: !1, line: 2, type: !9, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !16)
+ !9 = !DISubroutineType(types: !10)
+ !10 = !{null, !11, !13, !15}
+ !11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 32)
+ !12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
+ !13 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !14, size: 32)
+ !14 = !DIBasicType(name: "short", size: 16, encoding: DW_ATE_signed)
+ !15 = !DIBasicType(name: "unsigned int", size: 32, encoding: DW_ATE_unsigned)
+ !16 = !{!17, !18, !19, !20, !21}
+ !17 = !DILocalVariable(name: "a", arg: 1, scope: !8, file: !1, line: 2, type: !11)
+ !18 = !DILocalVariable(name: "b", arg: 2, scope: !8, file: !1, line: 2, type: !13)
+ !19 = !DILocalVariable(name: "N", arg: 3, scope: !8, file: !1, line: 2, type: !15)
+ !20 = !DILocalVariable(name: "temp", scope: !8, file: !1, line: 3, type: !12)
+ !21 = !DILocalVariable(name: "i", scope: !22, file: !1, line: 4, type: !15)
+ !22 = distinct !DILexicalBlock(scope: !8, file: !1, line: 4, column: 3)
+ !23 = !DILocation(line: 0, scope: !8)
+ !24 = !DILocation(line: 3, column: 14, scope: !8)
+ !25 = !{!26, !26, i64 0}
+ !26 = !{!"int", !27, i64 0}
+ !27 = !{!"omnipotent char", !28, i64 0}
+ !28 = !{!"Simple C/C++ TBAA"}
+ !29 = !DILocation(line: 0, scope: !22)
+ !30 = !DILocation(line: 4, column: 26, scope: !31)
+ !31 = distinct !DILexicalBlock(scope: !22, file: !1, line: 4, column: 3)
+ !32 = !DILocation(line: 4, column: 3, scope: !22)
+ !33 = !DILocation(line: 4, column: 31, scope: !31)
+ !34 = !DILocation(line: 5, column: 13, scope: !35)
+ !35 = distinct !DILexicalBlock(scope: !31, file: !1, line: 4, column: 36)
+ !36 = !{!37, !37, i64 0}
+ !37 = !{!"short", !27, i64 0}
+ !38 = !DILocation(line: 5, column: 10, scope: !35)
+ !39 = distinct !{!39, !32, !40, !41}
+ !40 = !DILocation(line: 6, column: 3, scope: !22)
+ !41 = !{!"llvm.loop.isvectorized", i32 1}
+ !42 = !DILocation(line: 7, column: 6, scope: !8)
+ !43 = !DILocation(line: 8, column: 1, scope: !8)
+
+...
+---
+name: skip_debug
+alignment: 2
+exposesReturnsTwice: false
+legalized: false
+regBankSelected: false
+selected: false
+failedISel: false
+tracksRegLiveness: true
+hasWinCFI: false
+registers: []
+liveins:
+ - { reg: '$r0', virtual-reg: '' }
+ - { reg: '$r1', virtual-reg: '' }
+ - { reg: '$r2', virtual-reg: '' }
+frameInfo:
+ isFrameAddressTaken: false
+ isReturnAddressTaken: false
+ hasStackMap: false
+ hasPatchPoint: false
+ stackSize: 16
+ offsetAdjustment: -8
+ maxAlignment: 4
+ adjustsStack: false
+ hasCalls: false
+ stackProtector: ''
+ maxCallFrameSize: 0
+ cvBytesOfCalleeSavedRegisters: 0
+ hasOpaqueSPAdjustment: false
+ hasVAStart: false
+ hasMustTailInVarArgFunc: false
+ localFrameSize: 0
+ savePoint: ''
+ restorePoint: ''
+fixedStack: []
+stack:
+ - { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
+ stack-id: default, callee-saved-register: '$lr', callee-saved-restored: false,
+ debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
+ - { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
+ stack-id: default, callee-saved-register: '$r7', callee-saved-restored: true,
+ debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
+ - { id: 2, name: '', type: spill-slot, offset: -12, size: 4, alignment: 4,
+ stack-id: default, callee-saved-register: '$r6', callee-saved-restored: true,
+ debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
+ - { id: 3, name: '', type: spill-slot, offset: -16, size: 4, alignment: 4,
+ stack-id: default, callee-saved-register: '$r4', callee-saved-restored: true,
+ debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
+callSites: []
+constants: []
+machineFunctionInfo: {}
+body: |
+ ; CHECK-LABEL: name: skip_debug
+ ; CHECK: bb.0.entry:
+ ; CHECK: successors: %bb.4(0x30000000), %bb.1(0x50000000)
+ ; CHECK: liveins: $lr, $r0, $r1, $r2, $r4, $r6
+ ; CHECK: DBG_VALUE $r0, $noreg, !17, !DIExpression(), debug-location !23
+ ; CHECK: DBG_VALUE $r0, $noreg, !17, !DIExpression(), debug-location !23
+ ; CHECK: DBG_VALUE $r1, $noreg, !18, !DIExpression(), debug-location !23
+ ; CHECK: DBG_VALUE $r1, $noreg, !18, !DIExpression(), debug-location !23
+ ; CHECK: DBG_VALUE $r2, $noreg, !19, !DIExpression(), debug-location !23
+ ; CHECK: DBG_VALUE $r2, $noreg, !19, !DIExpression(), debug-location !23
+ ; CHECK: frame-setup tPUSH 14, $noreg, killed $r4, killed $r6, killed $lr, implicit-def $sp, implicit $sp
+ ; CHECK: frame-setup CFI_INSTRUCTION def_cfa_offset 16
+ ; CHECK: frame-setup CFI_INSTRUCTION offset $lr, -4
+ ; CHECK: frame-setup CFI_INSTRUCTION offset $r7, -8
+ ; CHECK: frame-setup CFI_INSTRUCTION offset $r6, -12
+ ; CHECK: frame-setup CFI_INSTRUCTION offset $r4, -16
+ ; CHECK: dead $r7 = frame-setup tADDrSPi $sp, 2, 14, $noreg
+ ; CHECK: frame-setup CFI_INSTRUCTION def_cfa $r7, 8
+ ; CHECK: renamable $r12 = t2LDRi12 renamable $r0, 0, 14, $noreg, debug-location !24 :: (load 4 from %ir.a)
+ ; CHECK: DBG_VALUE 0, $noreg, !21, !DIExpression(), debug-location !25
+ ; CHECK: DBG_VALUE $r12, $noreg, !20, !DIExpression(), debug-location !23
+ ; CHECK: tCBZ $r2, %bb.4, debug-location !28
+ ; CHECK: bb.1.vector.ph:
+ ; CHECK: successors: %bb.2(0x80000000)
+ ; CHECK: liveins: $r0, $r1, $r2, $r12
+ ; CHECK: renamable $r3, dead $cpsr = tADDi3 renamable $r2, 3, 14, $noreg, debug-location !28
+ ; CHECK: renamable $lr = t2MOVi 1, 14, $noreg, $noreg
+ ; CHECK: renamable $r3 = t2BICri killed renamable $r3, 3, 14, $noreg, $noreg, debug-location !28
+ ; CHECK: renamable $r4, dead $cpsr = tMOVi8 0, 14, $noreg
+ ; CHECK: renamable $r3, dead $cpsr = tSUBi8 killed renamable $r3, 4, 14, $noreg, debug-location !28
+ ; CHECK: renamable $q0 = MVE_VDUP32 killed renamable $r4, 0, $noreg, undef renamable $q0, debug-location !28
+ ; CHECK: renamable $q0 = MVE_VMOV_to_lane_32 killed renamable $q0, killed renamable $r12, 0, 14, $noreg, debug-location !28
+ ; CHECK: renamable $lr = nuw nsw t2ADDrs killed renamable $lr, renamable $r3, 19, 14, $noreg, $noreg, debug-location !28
+ ; CHECK: renamable $r3, dead $cpsr = tLSRri killed renamable $r3, 2, 14, $noreg, debug-location !28
+ ; CHECK: renamable $r3 = t2SUBrs renamable $r2, killed renamable $r3, 18, 14, $noreg, $noreg, debug-location !28
+ ; CHECK: $lr = t2DLS killed renamable $lr, debug-location !28
+ ; CHECK: bb.2.vector.body:
+ ; CHECK: successors: %bb.2(0x7c000000), %bb.3(0x04000000)
+ ; CHECK: liveins: $lr, $q0, $r0, $r1, $r2, $r3
+ ; CHECK: renamable $vpr = MVE_VCTP32 renamable $r2, 0, $noreg, debug-location !30
+ ; CHECK: DBG_VALUE $vpr, $noreg, !17, !DIExpression(), debug-location !30
+ ; CHECK: $q1 = MVE_VORR killed $q0, killed $q0, 0, $noreg, undef $q1
+ ; CHECK: MVE_VPST 8, implicit $vpr, debug-location !30
+ ; CHECK: renamable $r1, renamable $q0 = MVE_VLDRHU32_post killed renamable $r1, 8, 1, killed renamable $vpr, debug-location !30 :: (load 8 from %ir.lsr.iv14, align 2)
+ ; CHECK: renamable $r2, dead $cpsr = tSUBi8 killed renamable $r2, 4, 14, $noreg, debug-location !30
+ ; CHECK: renamable $q0 = MVE_VMOVLs16bh killed renamable $q0, 0, $noreg, undef renamable $q0, debug-location !30
+ ; CHECK: renamable $q0 = MVE_VSUBi32 renamable $q1, killed renamable $q0, 0, $noreg, undef renamable $q0, debug-location !32
+ ; CHECK: $lr = t2LEUpdate killed renamable $lr, %bb.2, debug-location !29
+ ; CHECK: bb.3.middle.block:
+ ; CHECK: successors: %bb.4(0x80000000)
+ ; CHECK: liveins: $q0, $q1, $r0, $r3
+ ; CHECK: renamable $vpr = MVE_VCTP32 killed renamable $r3, 0, $noreg, debug-location !30
+ ; CHECK: renamable $q0 = MVE_VPSEL killed renamable $q0, killed renamable $q1, 0, killed renamable $vpr, debug-location !32
+ ; CHECK: renamable $r12 = MVE_VADDVu32no_acc killed renamable $q0, 0, $noreg, debug-location !28
+ ; CHECK: bb.4.for.cond.cleanup:
+ ; CHECK: liveins: $r0, $r12
+ ; CHECK: DBG_VALUE $r12, $noreg, !20, !DIExpression(), debug-location !23
+ ; CHECK: t2STRi12 killed renamable $r12, killed renamable $r0, 0, 14, $noreg, debug-location !33 :: (store 4 into %ir.a)
+ ; CHECK: tPOP_RET 14, $noreg, def $r4, def $r6, def $r7, def $pc, debug-location !34
+ bb.0.entry:
+ successors: %bb.4(0x30000000), %bb.1(0x50000000)
+ liveins: $r0, $r1, $r2, $r4, $r6, $lr
+
+ DBG_VALUE $r0, $noreg, !17, !DIExpression(), debug-location !23
+ DBG_VALUE $r0, $noreg, !17, !DIExpression(), debug-location !23
+ DBG_VALUE $r1, $noreg, !18, !DIExpression(), debug-location !23
+ DBG_VALUE $r1, $noreg, !18, !DIExpression(), debug-location !23
+ DBG_VALUE $r2, $noreg, !19, !DIExpression(), debug-location !23
+ DBG_VALUE $r2, $noreg, !19, !DIExpression(), debug-location !23
+ frame-setup tPUSH 14, $noreg, killed $r4, killed $r6, killed $lr, implicit-def $sp, implicit $sp
+ frame-setup CFI_INSTRUCTION def_cfa_offset 16
+ frame-setup CFI_INSTRUCTION offset $lr, -4
+ frame-setup CFI_INSTRUCTION offset $r7, -8
+ frame-setup CFI_INSTRUCTION offset $r6, -12
+ frame-setup CFI_INSTRUCTION offset $r4, -16
+ $r7 = frame-setup tADDrSPi $sp, 2, 14, $noreg
+ frame-setup CFI_INSTRUCTION def_cfa $r7, 8
+ renamable $r12 = t2LDRi12 renamable $r0, 0, 14, $noreg, debug-location !24 :: (load 4 from %ir.a)
+ DBG_VALUE 0, $noreg, !21, !DIExpression(), debug-location !29
+ DBG_VALUE $r12, $noreg, !20, !DIExpression(), debug-location !23
+ tCBZ $r2, %bb.4, debug-location !32
+
+ bb.1.vector.ph:
+ successors: %bb.2(0x80000000)
+ liveins: $r0, $r1, $r2, $r12
+
+ renamable $r3, dead $cpsr = tADDi3 renamable $r2, 3, 14, $noreg, debug-location !32
+ renamable $lr = t2MOVi 1, 14, $noreg, $noreg
+ renamable $r3 = t2BICri killed renamable $r3, 3, 14, $noreg, $noreg, debug-location !32
+ renamable $r4, dead $cpsr = tMOVi8 0, 14, $noreg
+ renamable $r3, dead $cpsr = tSUBi8 killed renamable $r3, 4, 14, $noreg, debug-location !32
+ renamable $q0 = MVE_VDUP32 killed renamable $r4, 0, $noreg, undef renamable $q0, debug-location !32
+ renamable $q0 = MVE_VMOV_to_lane_32 killed renamable $q0, killed renamable $r12, 0, 14, $noreg, debug-location !32
+ renamable $lr = nuw nsw t2ADDrs killed renamable $lr, renamable $r3, 19, 14, $noreg, $noreg, debug-location !32
+ renamable $r3, dead $cpsr = tLSRri killed renamable $r3, 2, 14, $noreg, debug-location !32
+ renamable $r3 = t2SUBrs renamable $r2, killed renamable $r3, 18, 14, $noreg, $noreg, debug-location !32
+ t2DoLoopStart renamable $lr, debug-location !32
+
+ bb.2.vector.body:
+ successors: %bb.2(0x7c000000), %bb.3(0x04000000)
+ liveins: $lr, $q0, $r0, $r1, $r2, $r3
+
+ renamable $vpr = MVE_VCTP32 renamable $r2, 0, $noreg, debug-location !34
+ DBG_VALUE $vpr, $noreg, !17, !DIExpression(), debug-location !34
+ $q1 = MVE_VORR killed $q0, $q0, 0, $noreg, undef $q1
+ MVE_VPST 8, implicit $vpr, debug-location !34
+ renamable $r1, renamable $q0 = MVE_VLDRHU32_post killed renamable $r1, 8, 1, killed renamable $vpr, debug-location !34 :: (load 8 from %ir.lsr.iv14, align 2)
+ renamable $r2, dead $cpsr = tSUBi8 killed renamable $r2, 4, 14, $noreg, debug-location !34
+ renamable $q0 = MVE_VMOVLs16bh killed renamable $q0, 0, $noreg, undef renamable $q0, debug-location !34
+ renamable $lr = t2LoopDec killed renamable $lr, 1, debug-location !33
+ renamable $q0 = MVE_VSUBi32 renamable $q1, killed renamable $q0, 0, $noreg, undef renamable $q0, debug-location !38
+ t2LoopEnd renamable $lr, %bb.2, implicit-def dead $cpsr, debug-location !33
+ tB %bb.3, 14, $noreg, debug-location !33
+
+ bb.3.middle.block:
+ successors: %bb.4(0x80000000)
+ liveins: $q0, $q1, $r0, $r3
+
+ renamable $vpr = MVE_VCTP32 killed renamable $r3, 0, $noreg, debug-location !34
+ renamable $q0 = MVE_VPSEL killed renamable $q0, killed renamable $q1, 0, killed renamable $vpr, debug-location !38
+ renamable $r12 = MVE_VADDVu32no_acc killed renamable $q0, 0, $noreg, debug-location !32
+
+ bb.4.for.cond.cleanup:
+ liveins: $r0, $r12
+
+ DBG_VALUE $r12, $noreg, !20, !DIExpression(), debug-location !23
+ t2STRi12 killed renamable $r12, killed renamable $r0, 0, 14, $noreg, debug-location !42 :: (store 4 into %ir.a)
+ tPOP_RET 14, $noreg, def $r4, def $r6, def $r7, def $pc, debug-location !43
+
+...
More information about the llvm-commits
mailing list