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1# RUN: llc %s -o - -run-pass=removeredundantdebugvalues | FileCheck --implicit-check-not=DBG_VALUE %s2# RUN: llc %s -o - -passes=remove-redundant-debug-values | FileCheck --implicit-check-not=DBG_VALUE %s3 4## This checks that the RemoveRedundantDebugValues removes redundant5## DBG_VALUEs. The MIR was hand-written, and foo{[2-6]}() are just6## copies of foo(), with an extra instruction that modifies the $edi register7## and extra (artificial) DBG_VALUE and DBG_VALUE_LIST instructions.8 9# CHECK-LABEL: foo10# CHECK-LABEL: bb.0.entry:11# CHECK: DBG_VALUE $edi12# CHECK-NOT: DBG_VALUE $edi13# CHECK: frame-setup PUSH64r14# CHECK: MOV32mr $rip, 1, $noreg15# CHECK-NOT: DBG_VALUE $edi16 17# CHECK-LABEL: foo618# CHECK-LABEL: bb.0.entry:19# CHECK: DBG_VALUE 020# CHECK: DBG_VALUE 121# CHECK: frame-setup PUSH64r22 23# CHECK-LABEL: foo224# CHECK-LABEL: bb.0.entry:25# CHECK: DBG_VALUE $edi26# CHECK: MOV32mr $rip, 1, $noreg27# CHECK: DBG_VALUE $edi28 29# CHECK-LABEL: foo330# CHECK-LABEL: bb.0.entry:31# CHECK: DBG_VALUE $edi, {{.*}}, !DIExpression(DW_OP_LLVM_fragment, 0, 32)32# CHECK: DBG_VALUE $esi, {{.*}}, !DIExpression()33# CHECK: DBG_VALUE $edi, {{.*}}, !DIExpression(DW_OP_LLVM_fragment, 0, 32)34 35# CHECK-LABEL: foo436# CHECK-LABEL: bb.0.entry:37# CHECK: DBG_VALUE $edi, {{.*}}, !DIExpression(DW_OP_LLVM_fragment, 0, 32)38# CHECK: DBG_VALUE_LIST !{{.*}}39# CHECK: DBG_VALUE $edi, {{.*}}, !DIExpression(DW_OP_LLVM_fragment, 0, 32)40 41# CHECK-LABEL: foo542# CHECK-LABEL: bb.0.entry:43# CHECK: DBG_VALUE $edi, {{.*}}, !DIExpression(DW_OP_LLVM_fragment, 0, 32)44# CHECK: DBG_VALUE 0, {{.*}}, !DIExpression()45# CHECK: DBG_VALUE $edi, {{.*}}, !DIExpression(DW_OP_LLVM_fragment, 0, 32)46 47--- |48 ; ModuleID = 'test.ll'49 source_filename = "test.c"50 target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"51 target triple = "x86_64-unknown-linux-gnu"52 53 @side_effect = external dso_local local_unnamed_addr global i32, align 454 @value = external dso_local local_unnamed_addr global i32, align 455 56 ; Function Attrs: nounwind uwtable57 define dso_local i32 @foo(i32 %param) local_unnamed_addr !dbg !8 {58 entry:59 call void @llvm.dbg.value(metadata i32 %param, metadata !13, metadata !DIExpression()), !dbg !1460 store i32 %param, ptr @side_effect, align 4, !dbg !1561 %0 = load i32, ptr @value, align 4, !dbg !2062 call void @llvm.dbg.value(metadata i32 %0, metadata !13, metadata !DIExpression()), !dbg !1463 tail call void @bar(i32 %0), !dbg !2164 ret i32 0, !dbg !2265 }66 67 define dso_local i32 @foo6(i32 %param) local_unnamed_addr !dbg !34 {68 entry:69 store i32 %param, ptr @side_effect, align 4, !dbg !3570 %0 = load i32, ptr @value, align 4, !dbg !3571 tail call void @bar(i32 %0), !dbg !3572 ret i32 0, !dbg !3573 }74 75 ; Function Attrs: nounwind uwtable76 define dso_local i32 @foo2(i32 %param) local_unnamed_addr !dbg !26 {77 entry:78 store i32 %param, ptr @side_effect, align 4, !dbg !2779 %0 = load i32, ptr @value, align 4, !dbg !2780 tail call void @bar(i32 %0), !dbg !2781 ret i32 0, !dbg !2782 }83 84 ; Function Attrs: nounwind uwtable85 define dso_local i32 @foo3(i32 %param) local_unnamed_addr !dbg !28 {86 entry:87 store i32 %param, ptr @side_effect, align 4, !dbg !2988 %0 = load i32, ptr @value, align 4, !dbg !2989 tail call void @bar(i32 %0), !dbg !2990 ret i32 0, !dbg !2991 }92 93 ; Function Attrs: nounwind uwtable94 define dso_local i32 @foo4(i32 %param) local_unnamed_addr !dbg !30 {95 entry:96 store i32 %param, ptr @side_effect, align 4, !dbg !3197 %0 = load i32, ptr @value, align 4, !dbg !3198 tail call void @bar(i32 %0), !dbg !3199 ret i32 0, !dbg !31100 }101 102 ; Function Attrs: nounwind uwtable103 define dso_local i32 @foo5(i32 %param) local_unnamed_addr !dbg !32 {104 entry:105 store i32 %param, ptr @side_effect, align 4, !dbg !33106 %0 = load i32, ptr @value, align 4, !dbg !33107 tail call void @bar(i32 %0), !dbg !33108 ret i32 0, !dbg !33109 }110 111 declare !dbg !23 dso_local void @bar(i32) local_unnamed_addr112 113 ; Function Attrs: nofree nosync nounwind readnone speculatable willreturn114 declare void @llvm.dbg.value(metadata, metadata, metadata)115 116 !llvm.dbg.cu = !{!0}117 !llvm.module.flags = !{!3, !4, !5, !6}118 !llvm.ident = !{!7}119 120 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 13.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)121 !1 = !DIFile(filename: "test.c", directory: "/dir")122 !2 = !{}123 !3 = !{i32 7, !"Dwarf Version", i32 4}124 !4 = !{i32 2, !"Debug Info Version", i32 3}125 !5 = !{i32 1, !"wchar_size", i32 4}126 !6 = !{i32 7, !"uwtable", i32 1}127 !7 = !{!"clang version 13.0.0"}128 !8 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 4, type: !9, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !12)129 !9 = !DISubroutineType(types: !10)130 !10 = !{!11, !11}131 !11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)132 !12 = !{!13}133 !13 = !DILocalVariable(name: "param", arg: 1, scope: !8, file: !1, line: 4, type: !11)134 !14 = !DILocation(line: 0, scope: !8)135 !15 = !DILocation(line: 5, column: 17, scope: !8)136 !20 = !DILocation(line: 6, column: 13, scope: !8)137 !21 = !DILocation(line: 7, column: 5, scope: !8)138 !22 = !DILocation(line: 8, column: 5, scope: !8)139 !23 = !DISubprogram(name: "bar", scope: !1, file: !1, line: 1, type: !24, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)140 !24 = !DISubroutineType(types: !25)141 !25 = !{null, !11}142 !26 = distinct !DISubprogram(name: "foo2", scope: !1, file: !1, line: 4, type: !9, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)143 !27 = !DILocation(line: 0, scope: !26)144 !28 = distinct !DISubprogram(name: "foo3", scope: !1, file: !1, line: 4, type: !9, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)145 !29 = !DILocation(line: 0, scope: !28)146 !30 = distinct !DISubprogram(name: "foo4", scope: !1, file: !1, line: 4, type: !9, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)147 !31 = !DILocation(line: 0, scope: !30)148 !32 = distinct !DISubprogram(name: "foo5", scope: !1, file: !1, line: 4, type: !9, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)149 !33 = !DILocation(line: 0, scope: !32)150 !34 = distinct !DISubprogram(name: "foo6", scope: !1, file: !1, line: 4, type: !9, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)151 !35 = !DILocation(line: 0, scope: !34)152 153...154---155name: foo156alignment: 16157liveins:158 - { reg: '$edi', virtual-reg: '' }159body: |160 bb.0.entry:161 liveins: $edi, $esi162 163 DBG_VALUE $edi, $noreg, !13, !DIExpression(), debug-location !14164 DBG_VALUE $edi, $noreg, !13, !DIExpression(), debug-location !14165 frame-setup PUSH64r undef $rax, implicit-def $rsp, implicit $rsp166 CFI_INSTRUCTION def_cfa_offset 16167 MOV32mr $rip, 1, $noreg, @side_effect, $noreg, killed renamable $esi, debug-location !15 :: (store 4 into @side_effect)168 DBG_VALUE $edi, $noreg, !13, !DIExpression(), debug-location !14169 CALL64pcrel32 @bar, csr_64, implicit $rsp, implicit $ssp, implicit $edi, implicit-def $rsp, implicit-def $ssp, debug-location !21170 $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, debug-location !22171 $rcx = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !22172 CFI_INSTRUCTION def_cfa_offset 8, debug-location !22173 RET64 killed $eax, debug-location !22174 175...176---177name: foo2178alignment: 16179liveins:180 - { reg: '$edi', virtual-reg: '' }181body: |182 bb.0.entry:183 liveins: $edi, $esi184 185 DBG_VALUE $edi, $noreg, !13, !DIExpression(), debug-location !14186 DBG_VALUE $edi, $noreg, !13, !DIExpression(), debug-location !14187 frame-setup PUSH64r undef $rax, implicit-def $rsp, implicit $rsp188 CFI_INSTRUCTION def_cfa_offset 16189 MOV32mr $rip, 1, $noreg, @side_effect, $noreg, killed renamable $esi, debug-location !15 :: (store 4 into @side_effect)190 renamable $edi = MOV32rm $rip, 1, $noreg, @value, $noreg, debug-location !20 :: (dereferenceable load 4 from @value)191 DBG_VALUE $edi, $noreg, !13, !DIExpression(), debug-location !14192 CALL64pcrel32 @bar, csr_64, implicit $rsp, implicit $ssp, implicit $edi, implicit-def $rsp, implicit-def $ssp, debug-location !21193 $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, debug-location !22194 $rcx = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !22195 CFI_INSTRUCTION def_cfa_offset 8, debug-location !22196 RET64 killed $eax, debug-location !22197 198...199---200name: foo3201alignment: 16202liveins:203 - { reg: '$edi', virtual-reg: '' }204body: |205 bb.0.entry:206 liveins: $edi, $esi207 208 DBG_VALUE $edi, $noreg, !13, !DIExpression(DW_OP_LLVM_fragment, 0, 32), debug-location !14209 frame-setup PUSH64r undef $rax, implicit-def $rsp, implicit $rsp210 CFI_INSTRUCTION def_cfa_offset 16211 MOV32mr $rip, 1, $noreg, @side_effect, $noreg, killed renamable $esi, debug-location !15 :: (store 4 into @side_effect)212 renamable $esi = MOV32rm $rip, 1, $noreg, @value, $noreg, debug-location !20 :: (dereferenceable load 4 from @value)213 DBG_VALUE $esi, $noreg, !13, !DIExpression(), debug-location !14214 $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, debug-location !22215 DBG_VALUE $edi, $noreg, !13, !DIExpression(DW_OP_LLVM_fragment, 0, 32), debug-location !14216 $rcx = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !22217 CFI_INSTRUCTION def_cfa_offset 8, debug-location !22218 RET64 killed $eax, debug-location !22219 220...221---222name: foo4223alignment: 16224liveins:225 - { reg: '$edi', virtual-reg: '' }226body: |227 bb.0.entry:228 liveins: $edi, $esi229 230 DBG_VALUE $edi, $noreg, !13, !DIExpression(DW_OP_LLVM_fragment, 0, 32), debug-location !14231 frame-setup PUSH64r undef $rax, implicit-def $rsp, implicit $rsp232 CFI_INSTRUCTION def_cfa_offset 16233 MOV32mr $rip, 1, $noreg, @side_effect, $noreg, killed renamable $esi, debug-location !15 :: (store 4 into @side_effect)234 renamable $esi = MOV32rm $rip, 1, $noreg, @value, $noreg, debug-location !20 :: (dereferenceable load 4 from @value)235 DBG_VALUE_LIST !13, !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_plus, DW_OP_stack_value), $edi, $esi, debug-location !14236 $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, debug-location !22237 DBG_VALUE $edi, $noreg, !13, !DIExpression(DW_OP_LLVM_fragment, 0, 32), debug-location !14238 $rcx = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !22239 CFI_INSTRUCTION def_cfa_offset 8, debug-location !22240 RET64 killed $eax, debug-location !22241 242...243---244name: foo5245alignment: 16246liveins:247 - { reg: '$edi', virtual-reg: '' }248body: |249 bb.0.entry:250 liveins: $edi, $esi251 252 DBG_VALUE $edi, $noreg, !13, !DIExpression(DW_OP_LLVM_fragment, 0, 32), debug-location !14253 frame-setup PUSH64r undef $rax, implicit-def $rsp, implicit $rsp254 CFI_INSTRUCTION def_cfa_offset 16255 MOV32mr $rip, 1, $noreg, @side_effect, $noreg, killed renamable $esi, debug-location !15 :: (store 4 into @side_effect)256 renamable $esi = MOV32rm $rip, 1, $noreg, @value, $noreg, debug-location !20 :: (dereferenceable load 4 from @value)257 DBG_VALUE 0, $noreg, !13, !DIExpression(), debug-location !14258 $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, debug-location !22259 DBG_VALUE $edi, $noreg, !13, !DIExpression(DW_OP_LLVM_fragment, 0, 32), debug-location !14260 $rcx = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !22261 CFI_INSTRUCTION def_cfa_offset 8, debug-location !22262 RET64 killed $eax, debug-location !22263 264...265---266name: foo6267alignment: 16268liveins:269 - { reg: '$edi', virtual-reg: '' }270body: |271 bb.0.entry:272 liveins: $edi, $esi273 274 DBG_VALUE 0, $noreg, !13, !DIExpression(), debug-location !14275 DBG_VALUE 1, $noreg, !13, !DIExpression(), debug-location !14276 frame-setup PUSH64r undef $rax, implicit-def $rsp, implicit $rsp277 CFI_INSTRUCTION def_cfa_offset 16278 MOV32mr $rip, 1, $noreg, @side_effect, $noreg, killed renamable $esi, debug-location !15 :: (store 4 into @side_effect)279 renamable $esi = MOV32rm $rip, 1, $noreg, @value, $noreg, debug-location !20 :: (dereferenceable load 4 from @value)280 $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, debug-location !22281 $rcx = frame-destroy POP64r implicit-def $rsp, implicit $rsp, debug-location !22282 CFI_INSTRUCTION def_cfa_offset 8, debug-location !22283 RET64 killed $eax, debug-location !22284 285...286