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1# RUN: llc %s -run-pass x86-avoid-SFB -mtriple=x86_64-unknown-linux-gnu -o - | FileCheck %s -check-prefixes=CHECK,DEBUG2# RUN: llc %s -run-pass x86-avoid-SFB -mtriple=x86_64-unknown-linux-gnu -o - | FileCheck %s -check-prefixes=CHECK,NODEBUG3#4# This was generated from:5#6# using alpha = float __attribute__((ext_vector_type(4)));7#8# void bravo(alpha * __restrict__ p1, alpha * __restrict__ p2) {9# char *p3 = (char *)p1;10# *p3 = 0;11# alpha t = *p1;12# *p2 = t;13# }14#15# Using the command line:16# clang -g -c 1.cpp -O2 -S -emit-llvm -fno-strict-aliasing --target=x86_64-unknown-unknown -o test.ll17# llc -stop-before=x86-avoid-SFB test.ll -o before.mir18 19--- |20 ; ModuleID = 'test.ll'21 source_filename = "1.cpp"22 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"23 target triple = "x86_64-unknown-unknown"24 25 ; Function Attrs: norecurse nounwind uwtable26 define dso_local void @debug(ptr noalias nocapture %p1, ptr noalias nocapture %p2) local_unnamed_addr #0 !dbg !10 {27 entry:28 call void @llvm.dbg.value(metadata ptr %p1, metadata !21, metadata !DIExpression()), !dbg !2529 call void @llvm.dbg.value(metadata ptr %p2, metadata !22, metadata !DIExpression()), !dbg !2530 %0 = bitcast ptr %p1 to ptr, !dbg !2631 call void @llvm.dbg.value(metadata ptr %0, metadata !23, metadata !DIExpression()), !dbg !2532 store i8 0, ptr %0, align 1, !dbg !2733 %1 = load <4 x float>, ptr %p1, align 16, !dbg !2834 call void @llvm.dbg.value(metadata <4 x float> %1, metadata !24, metadata !DIExpression()), !dbg !2535 store <4 x float> %1, ptr %p2, align 16, !dbg !2936 ret void, !dbg !3037 }38 39 ; Function Attrs: norecurse nounwind uwtable40 define dso_local void @nodebug(ptr noalias nocapture %p1, ptr noalias nocapture %p2) local_unnamed_addr #0 {41 entry:42 %0 = bitcast ptr %p1 to ptr43 store i8 0, ptr %0, align 144 %1 = load <4 x float>, ptr %p1, align 1645 store <4 x float> %1, ptr %p2, align 1646 ret void47 }48 49 ; Function Attrs: nounwind readnone speculatable50 declare void @llvm.dbg.value(metadata, metadata, metadata) #151 52 ; Function Attrs: nounwind53 declare void @llvm.stackprotector(ptr, ptr) #254 55 attributes #0 = { norecurse nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "frame-pointer"="all" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "use-soft-float"="false" }56 attributes #1 = { nounwind readnone speculatable }57 attributes #2 = { nounwind }58 59 !llvm.dbg.cu = !{!0}60 !llvm.module.flags = !{!6, !7, !8}61 !llvm.ident = !{!9}62 63 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 9.0.0 (https://github.com/llvm/llvm-project.git 9afc4764dd24bd2f23c44e51ad33f8e58234a8b6)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None)64 !1 = !DIFile(filename: "1.cpp", directory: "C:\5CUsers\5Cgbdawsoc\5CDocuments\5Cllvm\5Cbg40969")65 !2 = !{}66 !3 = !{!4}67 !4 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !5, size: 64)68 !5 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)69 !6 = !{i32 2, !"Dwarf Version", i32 4}70 !7 = !{i32 2, !"Debug Info Version", i32 3}71 !8 = !{i32 1, !"wchar_size", i32 4}72 !9 = !{!"clang version 9.0.0 (https://github.com/llvm/llvm-project.git 9afc4764dd24bd2f23c44e51ad33f8e58234a8b6)"}73 !10 = distinct !DISubprogram(name: "bravo", linkageName: "_Z5bravoPDv4_fS0_", scope: !1, file: !1, line: 4, type: !11, scopeLine: 4, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !20)74 !11 = !DISubroutineType(types: !12)75 !12 = !{null, !13, !13}76 !13 = !DIDerivedType(tag: DW_TAG_restrict_type, baseType: !14)77 !14 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !15, size: 64)78 !15 = !DIDerivedType(tag: DW_TAG_typedef, name: "alpha", file: !1, line: 2, baseType: !16)79 !16 = !DICompositeType(tag: DW_TAG_array_type, baseType: !17, size: 128, flags: DIFlagVector, elements: !18)80 !17 = !DIBasicType(name: "float", size: 32, encoding: DW_ATE_float)81 !18 = !{!19}82 !19 = !DISubrange(count: 4)83 !20 = !{!21, !22, !23, !24}84 !21 = !DILocalVariable(name: "p1", arg: 1, scope: !10, file: !1, line: 4, type: !13)85 !22 = !DILocalVariable(name: "p2", arg: 2, scope: !10, file: !1, line: 4, type: !13)86 !23 = !DILocalVariable(name: "p3", scope: !10, file: !1, line: 5, type: !4)87 !24 = !DILocalVariable(name: "t", scope: !10, file: !1, line: 7, type: !15)88 !25 = !DILocation(line: 0, scope: !10)89 !26 = !DILocation(line: 5, column: 14, scope: !10)90 !27 = !DILocation(line: 6, column: 7, scope: !10)91 !28 = !DILocation(line: 7, column: 13, scope: !10)92 !29 = !DILocation(line: 8, column: 7, scope: !10)93 !30 = !DILocation(line: 9, column: 1, scope: !10)94 95...96---97name: debug98alignment: 1699exposesReturnsTwice: false100legalized: false101regBankSelected: false102selected: false103failedISel: false104tracksRegLiveness: true105hasWinCFI: false106registers:107 - { id: 0, class: gr64, preferred-register: '' }108 - { id: 1, class: gr64, preferred-register: '' }109 - { id: 2, class: vr128, preferred-register: '' }110liveins:111 - { reg: '$rdi', virtual-reg: '%0' }112 - { reg: '$rsi', virtual-reg: '%1' }113frameInfo:114 isFrameAddressTaken: false115 isReturnAddressTaken: false116 hasStackMap: false117 hasPatchPoint: false118 stackSize: 0119 offsetAdjustment: 0120 maxAlignment: 0121 adjustsStack: false122 hasCalls: false123 stackProtector: ''124 maxCallFrameSize: 4294967295125 cvBytesOfCalleeSavedRegisters: 0126 hasOpaqueSPAdjustment: false127 hasVAStart: false128 hasMustTailInVarArgFunc: false129 localFrameSize: 0130 savePoint: []131 restorePoint: []132fixedStack: []133stack: []134constants: []135machineFunctionInfo: {}136body: |137 bb.0.entry:138 liveins: $rdi, $rsi139 140 DBG_VALUE $rdi, $noreg, !21, !DIExpression(), debug-location !25141 DBG_VALUE $rsi, $noreg, !22, !DIExpression(), debug-location !25142 %1:gr64 = COPY $rsi143 DBG_VALUE %1, $noreg, !22, !DIExpression(), debug-location !25144 %0:gr64 = COPY $rdi145 DBG_VALUE %0, $noreg, !21, !DIExpression(), debug-location !25146 DBG_VALUE %0, $noreg, !23, !DIExpression(), debug-location !25147 MOV8mi %0, 1, $noreg, 0, $noreg, 0, debug-location !27 :: (store (s8) into %ir.0)148 %2:vr128 = MOVAPSrm %0, 1, $noreg, 0, $noreg, debug-location !28 :: (load (s128) from %ir.p1)149 DBG_VALUE %2, $noreg, !24, !DIExpression(), debug-location !25150 MOVAPSmr %1, 1, $noreg, 0, $noreg, killed %2, debug-location !29 :: (store (s128) into %ir.p2)151 RET 0, debug-location !30152 153...154---155name: nodebug156alignment: 16157exposesReturnsTwice: false158legalized: false159regBankSelected: false160selected: false161failedISel: false162tracksRegLiveness: true163hasWinCFI: false164registers:165 - { id: 0, class: gr64, preferred-register: '' }166 - { id: 1, class: gr64, preferred-register: '' }167 - { id: 2, class: vr128, preferred-register: '' }168liveins:169 - { reg: '$rdi', virtual-reg: '%0' }170 - { reg: '$rsi', virtual-reg: '%1' }171frameInfo:172 isFrameAddressTaken: false173 isReturnAddressTaken: false174 hasStackMap: false175 hasPatchPoint: false176 stackSize: 0177 offsetAdjustment: 0178 maxAlignment: 0179 adjustsStack: false180 hasCalls: false181 stackProtector: ''182 maxCallFrameSize: 4294967295183 cvBytesOfCalleeSavedRegisters: 0184 hasOpaqueSPAdjustment: false185 hasVAStart: false186 hasMustTailInVarArgFunc: false187 localFrameSize: 0188 savePoint: []189 restorePoint: []190fixedStack: []191stack: []192constants: []193machineFunctionInfo: {}194body: |195 bb.0.entry:196 liveins: $rdi, $rsi197 198 %1:gr64 = COPY $rsi199 %0:gr64 = COPY $rdi200 MOV8mi %0, 1, $noreg, 0, $noreg, 0 :: (store (s8) into %ir.0)201 %2:vr128 = MOVAPSrm %0, 1, $noreg, 0, $noreg :: (load (s128) from %ir.p1)202 MOVAPSmr %1, 1, $noreg, 0, $noreg, killed %2 :: (store (s128) into %ir.p2)203 RET 0204 205 ; DEBUG: name: debug206 ; NODEBUG: name: nodebug207 ; CHECK: %1:gr64 = COPY208 ; CHECK: %0:gr64 = COPY209 ; CHECK: MOV8mi210 ; CHECK: %3:gr8 = MOV8rm211 ; CHECK: MOV8mr212 ; CHECK: %4:gr64 = MOV64rm213 ; CHECK: MOV64mr214 ; CHECK: %5:gr32 = MOV32rm215 ; CHECK: MOV32mr216 ; CHECK: %6:gr16 = MOV16rm217 ; CHECK: MOV16mr218 ; CHECK: %7:gr8 = MOV8rm219 ; CHECK: MOV8mr220 ; CHECK: RET 0221 ; DEBUG: name: nodebug222...223