12033e550b
We can refer to frame index locations when salvaging debug info for certain nodes, which prevents the compiler from optimizing out the location.
144 lines
8.2 KiB
LLVM
144 lines
8.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5
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; RUN: llc -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -stop-after=x86-optimize-LEAs -experimental-debug-variable-locations=false < %s \
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; RUN: | FileCheck %s --check-prefix=NORMAL
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; RUN: llc -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -stop-after=x86-optimize-LEAs -experimental-debug-variable-locations < %s \
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; RUN: | FileCheck %s --check-prefix=INSTRREF
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; The LEA optimization pass used to crash on this testcase.
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; This test case used to trigger:
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;
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; assert(MRI->use_empty(LastVReg) &&
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; "The LEA's def register must have no uses");
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target triple = "x86_64-unknown-linux-gnu"
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%t10 = type { ptr, [32 x i8] }
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define void @foo() {
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; NORMAL-LABEL: name: foo
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; NORMAL: bb.0.bb_entry:
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; NORMAL-NEXT: successors: %bb.1(0x80000000)
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; NORMAL-NEXT: {{ $}}
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; NORMAL-NEXT: [[MOV32r0_:%[0-9]+]]:gr32 = MOV32r0 implicit-def dead $eflags
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; NORMAL-NEXT: [[COPY:%[0-9]+]]:gr8 = COPY [[MOV32r0_]].sub_8bit
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; NORMAL-NEXT: [[LEA64r:%[0-9]+]]:gr64 = LEA64r %stack.1.i, 1, $noreg, 0, $noreg
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; NORMAL-NEXT: [[DEF:%[0-9]+]]:gr64 = IMPLICIT_DEF
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; NORMAL-NEXT: {{ $}}
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; NORMAL-NEXT: bb.1.bb_8:
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; NORMAL-NEXT: successors: %bb.3(0x40000000), %bb.2(0x40000000)
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; NORMAL-NEXT: {{ $}}
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; NORMAL-NEXT: TEST8rr [[COPY]], [[COPY]], implicit-def $eflags
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; NORMAL-NEXT: JCC_1 %bb.3, 5, implicit $eflags
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; NORMAL-NEXT: JMP_1 %bb.2
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; NORMAL-NEXT: {{ $}}
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; NORMAL-NEXT: bb.2.bb_mid:
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; NORMAL-NEXT: successors: %bb.3(0x80000000)
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; NORMAL-NEXT: {{ $}}
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; NORMAL-NEXT: [[MOVUPSrm:%[0-9]+]]:vr128 = MOVUPSrm %stack.1.i, 1, $noreg, 40, $noreg :: (load (s128) from %ir.i4, align 8)
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; NORMAL-NEXT: MOVUPSmr $noreg, 1, $noreg, 0, $noreg, killed [[MOVUPSrm]] :: (store (s128) into `ptr null`, align 8)
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; NORMAL-NEXT: DBG_VALUE_LIST !3, !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_plus_uconst, 40, DW_OP_stack_value), %stack.1.i, %stack.1.i, debug-location !8
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; NORMAL-NEXT: [[MOVUPSrm1:%[0-9]+]]:vr128 = MOVUPSrm %stack.1.i, 1, $noreg, 40, $noreg :: (load (s128) from %ir.i6, align 8)
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; NORMAL-NEXT: MOVUPSmr $noreg, 1, $noreg, 0, $noreg, killed [[MOVUPSrm1]] :: (store (s128) into `ptr null`, align 8)
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; NORMAL-NEXT: {{ $}}
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; NORMAL-NEXT: bb.3.bb_last:
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; NORMAL-NEXT: successors: %bb.1(0x80000000)
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; NORMAL-NEXT: {{ $}}
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; NORMAL-NEXT: ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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; NORMAL-NEXT: [[SUBREG_TO_REG:%[0-9]+]]:gr64 = SUBREG_TO_REG 0, [[MOV32r0_]], %subreg.sub_32bit
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; NORMAL-NEXT: $rdi = COPY [[SUBREG_TO_REG]]
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; NORMAL-NEXT: $rsi = COPY [[SUBREG_TO_REG]]
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; NORMAL-NEXT: $rdx = COPY [[SUBREG_TO_REG]]
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; NORMAL-NEXT: $ecx = COPY [[MOV32r0_]]
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; NORMAL-NEXT: $r8 = COPY [[LEA64r]]
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; NORMAL-NEXT: CALL64r [[DEF]], csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit $rsi, implicit $rdx, implicit $ecx, implicit $r8, implicit-def $rsp, implicit-def $ssp
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; NORMAL-NEXT: ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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; NORMAL-NEXT: JMP_1 %bb.1
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;
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; INSTRREF-LABEL: name: foo
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; INSTRREF: bb.0.bb_entry:
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; INSTRREF-NEXT: successors: %bb.1(0x80000000)
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; INSTRREF-NEXT: {{ $}}
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; INSTRREF-NEXT: [[MOV32r0_:%[0-9]+]]:gr32 = MOV32r0 implicit-def dead $eflags
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; INSTRREF-NEXT: [[COPY:%[0-9]+]]:gr8 = COPY [[MOV32r0_]].sub_8bit
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; INSTRREF-NEXT: [[LEA64r:%[0-9]+]]:gr64 = LEA64r %stack.1.i, 1, $noreg, 0, $noreg
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; INSTRREF-NEXT: [[DEF:%[0-9]+]]:gr64 = IMPLICIT_DEF
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; INSTRREF-NEXT: {{ $}}
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; INSTRREF-NEXT: bb.1.bb_8:
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; INSTRREF-NEXT: successors: %bb.3(0x40000000), %bb.2(0x40000000)
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; INSTRREF-NEXT: {{ $}}
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; INSTRREF-NEXT: TEST8rr [[COPY]], [[COPY]], implicit-def $eflags
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; INSTRREF-NEXT: JCC_1 %bb.3, 5, implicit $eflags
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; INSTRREF-NEXT: JMP_1 %bb.2
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; INSTRREF-NEXT: {{ $}}
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; INSTRREF-NEXT: bb.2.bb_mid:
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; INSTRREF-NEXT: successors: %bb.3(0x80000000)
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; INSTRREF-NEXT: {{ $}}
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; INSTRREF-NEXT: [[MOVUPSrm:%[0-9]+]]:vr128 = MOVUPSrm %stack.1.i, 1, $noreg, 40, $noreg :: (load (s128) from %ir.i4, align 8)
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; INSTRREF-NEXT: MOVUPSmr $noreg, 1, $noreg, 0, $noreg, killed [[MOVUPSrm]] :: (store (s128) into `ptr null`, align 8)
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; INSTRREF-NEXT: DBG_VALUE_LIST !3, !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_plus_uconst, 40, DW_OP_stack_value), %stack.1.i, %stack.1.i, debug-location !8
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; INSTRREF-NEXT: [[MOVUPSrm1:%[0-9]+]]:vr128 = MOVUPSrm %stack.1.i, 1, $noreg, 40, $noreg :: (load (s128) from %ir.i6, align 8)
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; INSTRREF-NEXT: MOVUPSmr $noreg, 1, $noreg, 0, $noreg, killed [[MOVUPSrm1]] :: (store (s128) into `ptr null`, align 8)
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; INSTRREF-NEXT: {{ $}}
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; INSTRREF-NEXT: bb.3.bb_last:
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; INSTRREF-NEXT: successors: %bb.1(0x80000000)
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; INSTRREF-NEXT: {{ $}}
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; INSTRREF-NEXT: ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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; INSTRREF-NEXT: [[SUBREG_TO_REG:%[0-9]+]]:gr64 = SUBREG_TO_REG 0, [[MOV32r0_]], %subreg.sub_32bit
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; INSTRREF-NEXT: $rdi = COPY [[SUBREG_TO_REG]]
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; INSTRREF-NEXT: $rsi = COPY [[SUBREG_TO_REG]]
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; INSTRREF-NEXT: $rdx = COPY [[SUBREG_TO_REG]]
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; INSTRREF-NEXT: $ecx = COPY [[MOV32r0_]]
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; INSTRREF-NEXT: $r8 = COPY [[LEA64r]]
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; INSTRREF-NEXT: CALL64r [[DEF]], csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit $rsi, implicit $rdx, implicit $ecx, implicit $r8, implicit-def $rsp, implicit-def $ssp
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; INSTRREF-NEXT: ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
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; INSTRREF-NEXT: JMP_1 %bb.1
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bb_entry:
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%tmp11 = alloca [0 x [0 x i32]], i32 0, align 4
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%i = alloca %t10, align 8
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%i1 = alloca %t10, align 8
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br label %bb_8
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bb_8: ; preds = %bb_last, %bb_entry
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br i1 undef, label %bb_last, label %bb_mid
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bb_mid: ; preds = %bb_8
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%i4 = getelementptr inbounds %t10, ptr %i1, i64 0, i32 1, i64 32
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%i6 = getelementptr inbounds %t10, ptr %i, i64 0, i32 1, i64 32
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call void @llvm.lifetime.start.p0(i64 0, ptr nonnull %i1)
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%v21 = call i64 @llvm.ctlz.i64(i64 undef, i1 false)
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call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull dereferenceable(16) null, ptr noundef nonnull align 8 dereferenceable(16) %i4, i64 16, i1 false)
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call void @llvm.dbg.value(metadata !DIArgList(ptr %i4, ptr %i4), metadata !4, metadata !DIExpression(DW_OP_LLVM_arg, 0)), !dbg !9
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call void @llvm.lifetime.end.p0(i64 0, ptr nonnull %i1)
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call void @llvm.lifetime.start.p0(i64 0, ptr nonnull %i)
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call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull dereferenceable(16) null, ptr noundef nonnull align 8 dereferenceable(16) %i6, i64 16, i1 false)
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call void @llvm.lifetime.end.p0(i64 0, ptr nonnull %i)
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br label %bb_last
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bb_last: ; preds = %bb_mid, %bb_8
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call void @llvm.lifetime.start.p0(i64 0, ptr nonnull %tmp11)
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call void undef(ptr null, ptr null, ptr null, i32 0, ptr nonnull %tmp11)
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call void @llvm.lifetime.end.p0(i64 0, ptr nonnull %tmp11)
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br label %bb_8
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}
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declare i64 @llvm.ctlz.i64(i64, i1 immarg)
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declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg)
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declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture)
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declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture)
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!2}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, isOptimized: false, runtimeVersion: 0, emissionKind: NoDebug)
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!1 = !DIFile(filename: "n", directory: "/proc/self/cwd", checksumkind: CSK_MD5, checksum: "e588179fedd8fcdfada963f2434cb950")
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!2 = !{i32 2, !"Debug Info Version", i32 3}
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!3 = !{!"function_entry_count", i64 2423}
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!4 = !DILocalVariable(name: "r", scope: !5, file: !6, line: 93)
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!5 = distinct !DISubprogram(name: "c", scope: !7, file: !6, line: 92, spFlags: DISPFlagDefinition, unit: !0)
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!6 = !DIFile(filename: "a", directory: "/proc/self/cwd")
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!7 = !DINamespace(name: "u", scope: !8)
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!8 = !DINamespace(name: "s", scope: null)
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!9 = !DILocation(line: 0, scope: !5)
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