133 lines
4.2 KiB
YAML
133 lines
4.2 KiB
YAML
# Start after bbsections0-prepare and check if the right code is generated.
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# RUN: llc -mtriple x86_64-unknown-linux-gnu -start-after=bbsections-prepare %s -o - | FileCheck %s -check-prefix=CHECK
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# How to generate the input:
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# foo.cc
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# int foo(bool k) {
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# if (k) return 1;
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# return 0;
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# }
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#
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# clang -O0 -S -emit-llvm foo.cc
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# llc < foo.ll -stop-after=bbsections-prepare -basic-block-sections=all
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--- |
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; Function Attrs: noinline nounwind optnone uwtable
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define dso_local i32 @_Z3foob(i1 zeroext %0) #0 {
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%2 = alloca i32, align 4
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%3 = alloca i8, align 1
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%4 = zext i1 %0 to i8
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store i8 %4, i8* %3, align 1
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%5 = load i8, i8* %3, align 1
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%6 = trunc i8 %5 to i1
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br i1 %6, label %7, label %8
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7: ; preds = %1
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store i32 1, i32* %2, align 4
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br label %9
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8: ; preds = %1
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store i32 0, i32* %2, align 4
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br label %9
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9: ; preds = %8, %7
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%10 = load i32, i32* %2, align 4
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ret i32 %10
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}
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attributes #0 = { "frame-pointer"="all" "target-cpu"="x86-64" }
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...
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---
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name: _Z3foob
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alignment: 16
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exposesReturnsTwice: false
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legalized: false
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regBankSelected: false
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selected: false
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failedISel: false
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tracksRegLiveness: true
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hasWinCFI: false
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registers: []
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liveins:
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- { reg: '$edi', virtual-reg: '' }
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frameInfo:
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isFrameAddressTaken: false
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isReturnAddressTaken: false
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hasStackMap: false
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hasPatchPoint: false
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stackSize: 8
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offsetAdjustment: -8
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maxAlignment: 4
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adjustsStack: false
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hasCalls: false
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stackProtector: ''
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maxCallFrameSize: 0
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cvBytesOfCalleeSavedRegisters: 0
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hasOpaqueSPAdjustment: false
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hasVAStart: false
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hasMustTailInVarArgFunc: false
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localFrameSize: 0
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savePoint: ''
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restorePoint: ''
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fixedStack:
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- { id: 0, type: spill-slot, offset: -16, size: 8, alignment: 16, stack-id: default,
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callee-saved-register: '', callee-saved-restored: true, debug-info-variable: '',
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debug-info-expression: '', debug-info-location: '' }
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stack:
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- { id: 0, type: default, offset: -24, size: 4,
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alignment: 4, stack-id: default, callee-saved-register: '', callee-saved-restored: true,
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debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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- { id: 1, type: default, offset: -17, size: 1,
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alignment: 1, stack-id: default, callee-saved-register: '', callee-saved-restored: true,
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debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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callSites: []
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constants: []
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machineFunctionInfo: {}
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body: |
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bb.0 (%ir-block.1, align 4, bbsections 0):
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successors: %bb.2(0x40000000), %bb.1(0x40000000)
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liveins: $edi
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frame-setup PUSH64r killed $rbp, implicit-def $rsp, implicit $rsp
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CFI_INSTRUCTION def_cfa_offset 16
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CFI_INSTRUCTION offset $rbp, -16
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$rbp = frame-setup MOV64rr $rsp
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CFI_INSTRUCTION def_cfa_register $rbp
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renamable $dil = AND8ri renamable $dil, 1, implicit-def dead $eflags, implicit killed $edi, implicit-def $edi
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MOV8mr $rbp, 1, $noreg, -1, $noreg, renamable $dil, implicit killed $edi :: (store 1 into %ir.3)
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TEST8mi $rbp, 1, $noreg, -1, $noreg, 1, implicit-def $eflags :: (load 1 from %ir.3)
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JCC_1 %bb.2, 4, implicit killed $eflags
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JMP_1 %bb.1
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bb.1 (%ir-block.7, bbsections 1):
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successors: %bb.3(0x80000000)
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MOV32mi $rbp, 1, $noreg, -8, $noreg, 1 :: (store 4 into %ir.2)
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JMP_1 %bb.3
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bb.2 (%ir-block.8, bbsections 2):
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successors: %bb.3(0x80000000)
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MOV32mi $rbp, 1, $noreg, -8, $noreg, 0 :: (store 4 into %ir.2)
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JMP_1 %bb.3
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bb.3 (%ir-block.9, bbsections 3):
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renamable $eax = MOV32rm $rbp, 1, $noreg, -8, $noreg :: (load 4 from %ir.2)
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$rbp = frame-destroy POP64r implicit-def $rsp, implicit $rsp
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CFI_INSTRUCTION def_cfa $rsp, 8
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RETQ implicit $eax
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...
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# CHECK: .section .text._Z3foob,"ax",@progbits
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# CHECK: _Z3foob:
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# CHECK: .section .text._Z3foob,"ax",@progbits,unique
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# CHECK: _Z3foob.__part.1:
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# CHECK: .section .text._Z3foob,"ax",@progbits,unique
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# CHECK: _Z3foob.__part.2:
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# CHECK: .section .text._Z3foob,"ax",@progbits,unique
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# CHECK: _Z3foob.__part.3:
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