llvm/test/CodeGen/X86/StackColoring-use-between-allocas.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -run-pass=stack-coloring %s -o - | FileCheck %s

## %tmpcast is between 2 allocas. %ref.tmp will replaced by %tmp. Make sure
## that we reorder %tmp to be before the use in %tmpcast.

# CHECK: %a = alloca %struct.e, align 1
# CHECK: %tmp = alloca %"struct.e::f", align 8
# CHECK: %0 = bitcast %"struct.e::f"* %tmp to { <2 x float>, <2 x float> }*
# CHECK: %ref.tmp = alloca { <2 x float>, <2 x float> }, align 8
# CHECK: %tmpcast = bitcast { <2 x float>, <2 x float> }* %0 to %class.d*
# CHECK: %b = alloca %struct.j, align 4

--- |
  source_filename = "<stdin>"
  target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
  target triple = "x86_64-apple-macosx10.15.0"

  %class.d = type { [4 x float] }
  %struct.e = type { i8 }
  %struct.j = type { i32 }
  %"struct.e::f" = type { [4 x i32*] }

  @i = local_unnamed_addr global %class.d zeroinitializer, align 8

  ; Function Attrs: ssp uwtable
  define void @_Z1gv() local_unnamed_addr #0 {
  entry:
    %a = alloca %struct.e, align 1
    %ref.tmp = alloca { <2 x float>, <2 x float> }, align 8
    %tmpcast = bitcast { <2 x float>, <2 x float> }* %ref.tmp to %class.d*
    %b = alloca %struct.j, align 4
    %tmp = alloca %"struct.e::f", align 8
    %0 = bitcast %struct.e* %a to i8*
    call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull %0) #3
    %1 = bitcast { <2 x float>, <2 x float> }* %ref.tmp to i8*
    call void @llvm.lifetime.start.p0i8(i64 16, i8* nonnull %1) #3
    %agg.tmp.sroa.0.0.copyload = load <2 x float>, <2 x float>* bitcast (%class.d* @i to <2 x float>*), align 8, !tbaa.struct !3
    %agg.tmp.sroa.2.0.copyload = load <2 x float>, <2 x float>* bitcast (float* getelementptr inbounds (%class.d, %class.d* @i, i64 0, i32 0, i64 2) to <2 x float>*), align 8, !tbaa.struct !3
    %call = tail call { <2 x float>, <2 x float> } @_Zng1d(<2 x float> %agg.tmp.sroa.0.0.copyload, <2 x float> %agg.tmp.sroa.2.0.copyload)
    %2 = bitcast { <2 x float>, <2 x float> }* %ref.tmp to <2 x float>*
    %3 = extractvalue { <2 x float>, <2 x float> } %call, 0
    store <2 x float> %3, <2 x float>* %2, align 8
    %4 = getelementptr inbounds { <2 x float>, <2 x float> }, { <2 x float>, <2 x float> }* %ref.tmp, i64 0, i32 1
    %5 = extractvalue { <2 x float>, <2 x float> } %call, 1
    store <2 x float> %5, <2 x float>* %4, align 8
    call void @_ZN1e1hERK1d(%struct.e* nonnull %a, %class.d* nonnull dereferenceable(16) %tmpcast)
    call void @llvm.lifetime.end.p0i8(i64 16, i8* nonnull %1) #3
    %6 = bitcast %struct.j* %b to i8*
    call void @llvm.lifetime.start.p0i8(i64 4, i8* nonnull %6) #3
    %7 = bitcast %"struct.e::f"* %tmp to i8*
    call void @llvm.lifetime.start.p0i8(i64 32, i8* nonnull %7) #3
    call void @_ZN1j1kEv(%"struct.e::f"* nonnull sret align 8 %tmp, %struct.j* nonnull %b)
    call void @llvm.lifetime.end.p0i8(i64 32, i8* nonnull %7) #3
    call void @llvm.lifetime.end.p0i8(i64 4, i8* nonnull %6) #3
    call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull %0) #3
    ret void
  }

  ; Function Attrs: argmemonly nounwind willreturn
  declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) #1

  declare void @_ZN1e1hERK1d(%struct.e*, %class.d* dereferenceable(16)) local_unnamed_addr #2

  declare { <2 x float>, <2 x float> } @_Zng1d(<2 x float>, <2 x float>) local_unnamed_addr #2

  ; Function Attrs: argmemonly nounwind willreturn
  declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) #1

  declare void @_ZN1j1kEv(%"struct.e::f"* sret align 8, %struct.j*) local_unnamed_addr #2

  ; Function Attrs: nounwind
  declare void @llvm.stackprotector(i8*, i8**) #3

  attributes #0 = { ssp uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="64" "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"="penryn" "target-features"="+cx16,+cx8,+fxsr,+mmx,+sahf,+sse,+sse2,+sse3,+sse4.1,+ssse3,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
  attributes #1 = { argmemonly nounwind willreturn }
  attributes #2 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="penryn" "target-features"="+cx16,+cx8,+fxsr,+mmx,+sahf,+sse,+sse2,+sse3,+sse4.1,+ssse3,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
  attributes #3 = { nounwind }

  !llvm.module.flags = !{!0, !1}
  !llvm.ident = !{!2}

  !0 = !{i32 1, !"wchar_size", i32 4}
  !1 = !{i32 7, !"PIC Level", i32 2}
  !2 = !{!"clang version 11.0.0 (https://github.com/llvm/llvm-project.git 82093e8fb7d65486ff450d33bf386aabd0d194f7)"}
  !3 = !{i64 0, i64 16, !4}
  !4 = !{!5, !5, i64 0}
  !5 = !{!"omnipotent char", !6, i64 0}
  !6 = !{!"Simple C++ TBAA"}

...
---
name:            _Z1gv
alignment:       16
exposesReturnsTwice: false
legalized:       false
regBankSelected: false
selected:        false
failedISel:      false
tracksRegLiveness: true
hasWinCFI:       false
registers:
  - { id: 0, class: vr128, preferred-register: '' }
  - { id: 1, class: vr128, preferred-register: '' }
  - { id: 2, class: vr128, preferred-register: '' }
  - { id: 3, class: vr128, preferred-register: '' }
  - { id: 4, class: gr64, preferred-register: '' }
  - { id: 5, class: gr64, preferred-register: '' }
  - { id: 6, class: gr64, preferred-register: '' }
  - { id: 7, class: gr64, preferred-register: '' }
liveins:         []
frameInfo:
  isFrameAddressTaken: false
  isReturnAddressTaken: false
  hasStackMap:     false
  hasPatchPoint:   false
  stackSize:       0
  offsetAdjustment: 0
  maxAlignment:    8
  adjustsStack:    false
  hasCalls:        true
  stackProtector:  ''
  maxCallFrameSize: 4294967295
  cvBytesOfCalleeSavedRegisters: 0
  hasOpaqueSPAdjustment: false
  hasVAStart:      false
  hasMustTailInVarArgFunc: false
  localFrameSize:  0
  savePoint:       ''
  restorePoint:    ''
fixedStack:      []
stack:
  - { id: 0, name: a, type: default, offset: 0, size: 1, alignment: 8,
      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 1, name: ref.tmp, type: default, offset: 0, size: 16, alignment: 8,
      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 2, name: b, type: default, offset: 0, size: 4, alignment: 8,
      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 3, name: tmp, type: default, offset: 0, size: 32, alignment: 8,
      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
callSites:       []
constants:       []
machineFunctionInfo: {}
body:             |
  bb.0.entry:
    ; CHECK-LABEL: name: _Z1gv
    ; CHECK: [[MOVSDrm:%[0-9]+]]:vr128 = MOVSDrm $rip, 1, $noreg, @i, $noreg :: (dereferenceable load 8 from `<2 x float>* bitcast (%class.d* @i to <2 x float>*)`)
    ; CHECK: [[MOVSDrm1:%[0-9]+]]:vr128 = MOVSDrm $rip, 1, $noreg, @i + 8, $noreg :: (dereferenceable load 8 from `<2 x float>* bitcast (float* getelementptr inbounds (%class.d, %class.d* @i, i64 0, i32 0, i64 2) to <2 x float>*)`)
    ; CHECK: ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
    ; CHECK: $xmm0 = COPY [[MOVSDrm]]
    ; CHECK: $xmm1 = COPY [[MOVSDrm1]]
    ; CHECK: CALL64pcrel32 @_Zng1d, csr_64, implicit $rsp, implicit $ssp, implicit $xmm0, implicit $xmm1, implicit-def $rsp, implicit-def $ssp, implicit-def $xmm0, implicit-def $xmm1
    ; CHECK: ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
    ; CHECK: [[COPY:%[0-9]+]]:vr128 = COPY $xmm0
    ; CHECK: [[COPY1:%[0-9]+]]:vr128 = COPY $xmm1
    ; CHECK: MOVLPDmr %stack.3.tmp, 1, $noreg, 0, $noreg, [[COPY]] :: (store 8 into %ir.3)
    ; CHECK: MOVLPDmr %stack.3.tmp, 1, $noreg, 8, $noreg, [[COPY1]] :: (store 8 into %ir.5)
    ; CHECK: ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
    ; CHECK: [[LEA64r:%[0-9]+]]:gr64 = LEA64r %stack.0.a, 1, $noreg, 0, $noreg
    ; CHECK: [[LEA64r1:%[0-9]+]]:gr64 = LEA64r %stack.3.tmp, 1, $noreg, 0, $noreg
    ; CHECK: $rdi = COPY [[LEA64r]]
    ; CHECK: $rsi = COPY [[LEA64r1]]
    ; CHECK: CALL64pcrel32 @_ZN1e1hERK1d, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit $rsi, implicit-def $rsp, implicit-def $ssp
    ; CHECK: ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
    ; CHECK: ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
    ; CHECK: [[LEA64r2:%[0-9]+]]:gr64 = LEA64r %stack.3.tmp, 1, $noreg, 0, $noreg
    ; CHECK: [[LEA64r3:%[0-9]+]]:gr64 = LEA64r %stack.2.b, 1, $noreg, 0, $noreg
    ; CHECK: $rdi = COPY [[LEA64r2]]
    ; CHECK: $rsi = COPY [[LEA64r3]]
    ; CHECK: CALL64pcrel32 @_ZN1j1kEv, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit $rsi, implicit-def $rsp, implicit-def $ssp
    ; CHECK: ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
    ; CHECK: RET 0
    LIFETIME_START %stack.0.a
    LIFETIME_START %stack.1.ref.tmp
    %0:vr128 = MOVSDrm $rip, 1, $noreg, @i, $noreg :: (dereferenceable load 8 from `<2 x float>* bitcast (%class.d* @i to <2 x float>*)`)
    %1:vr128 = MOVSDrm $rip, 1, $noreg, @i + 8, $noreg :: (dereferenceable load 8 from `<2 x float>* bitcast (float* getelementptr inbounds (%class.d, %class.d* @i, i64 0, i32 0, i64 2) to <2 x float>*)`)
    ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
    $xmm0 = COPY %0
    $xmm1 = COPY %1
    CALL64pcrel32 @_Zng1d, csr_64, implicit $rsp, implicit $ssp, implicit $xmm0, implicit $xmm1, implicit-def $rsp, implicit-def $ssp, implicit-def $xmm0, implicit-def $xmm1
    ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
    %2:vr128 = COPY $xmm0
    %3:vr128 = COPY $xmm1
    MOVLPDmr %stack.1.ref.tmp, 1, $noreg, 0, $noreg, %2 :: (store 8 into %ir.2)
    MOVLPDmr %stack.1.ref.tmp, 1, $noreg, 8, $noreg, %3 :: (store 8 into %ir.4)
    ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
    %4:gr64 = LEA64r %stack.0.a, 1, $noreg, 0, $noreg
    %5:gr64 = LEA64r %stack.1.ref.tmp, 1, $noreg, 0, $noreg
    $rdi = COPY %4
    $rsi = COPY %5
    CALL64pcrel32 @_ZN1e1hERK1d, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit $rsi, implicit-def $rsp, implicit-def $ssp
    ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
    LIFETIME_END %stack.1.ref.tmp
    LIFETIME_START %stack.2.b
    LIFETIME_START %stack.3.tmp
    ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
    %6:gr64 = LEA64r %stack.3.tmp, 1, $noreg, 0, $noreg
    %7:gr64 = LEA64r %stack.2.b, 1, $noreg, 0, $noreg
    $rdi = COPY %6
    $rsi = COPY %7
    CALL64pcrel32 @_ZN1j1kEv, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit $rsi, implicit-def $rsp, implicit-def $ssp
    ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
    LIFETIME_END %stack.3.tmp
    LIFETIME_END %stack.2.b
    LIFETIME_END %stack.0.a
    RET 0

...