| # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py |
| # RUN: llc -run-pass=regallocfast -verify-machineinstrs %s -o - | FileCheck %s |
| --- | |
| ; ModuleID = 'x.c' |
| source_filename = "x.c" |
| target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| ; Function Attrs: noinline nounwind optnone |
| define dso_local i32 @main() #0 { |
| entry: |
| %retval = alloca i32, align 4 |
| %x = alloca i32, align 4 |
| store i32 0, ptr %retval, align 4 |
| store i32 123, ptr %x, align 4 |
| %0 = callbr i32 asm "mov $1, $0\0A\09jmp ${2:l}", "=r,r,!i,~{dirflag},~{fpsr},~{flags}"(i32 45) #2 |
| to label %asm.fallthrough [label %label.split], !srcloc !5 |
| |
| asm.fallthrough: ; preds = %entry |
| store i32 %0, ptr %x, align 4 |
| store i32 6, ptr %x, align 4 |
| br label %label |
| |
| label: ; preds = %asm.fallthrough, %label.split |
| %1 = load i32, ptr %x, align 4 |
| ret i32 %1 |
| |
| label.split: ; preds = %entry |
| %2 = call i32 @llvm.callbr.landingpad.i32(i32 %0) |
| store i32 %2, ptr %x, align 4 |
| br label %label |
| } |
| |
| ; Function Attrs: nomerge nounwind |
| declare i32 @llvm.callbr.landingpad.i32(i32) #1 |
| |
| attributes #0 = { noinline nounwind optnone "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" } |
| attributes #1 = { nomerge nounwind } |
| attributes #2 = { nounwind memory(none) } |
| |
| !llvm.module.flags = !{!0, !1, !2, !3} |
| !llvm.ident = !{!4} |
| |
| !0 = !{i32 1, !"wchar_size", i32 4} |
| !1 = !{i32 8, !"PIC Level", i32 2} |
| !2 = !{i32 7, !"PIE Level", i32 2} |
| !3 = !{i32 7, !"frame-pointer", i32 2} |
| !4 = !{!"clang version 17.0.0 (git@github.com:llvm/llvm-project.git cf86855c4453d029a9b9ed8c4c4c18cefc1bc895)"} |
| !5 = !{i64 166, i64 179} |
| |
| ... |
| --- |
| name: main |
| alignment: 16 |
| exposesReturnsTwice: false |
| legalized: false |
| regBankSelected: false |
| selected: false |
| failedISel: false |
| tracksRegLiveness: true |
| hasWinCFI: false |
| callsEHReturn: false |
| callsUnwindInit: false |
| hasEHCatchret: false |
| hasEHScopes: false |
| hasEHFunclets: false |
| debugInstrRef: false |
| failsVerification: false |
| tracksDebugUserValues: false |
| registers: |
| - { id: 0, class: gr32, preferred-register: '' } |
| - { id: 1, class: gr32, preferred-register: '' } |
| - { id: 2, class: gr32, preferred-register: '' } |
| - { id: 3, class: gr32, preferred-register: '' } |
| - { id: 4, class: gr32, preferred-register: '' } |
| - { id: 5, class: gr32, preferred-register: '' } |
| - { id: 6, class: gr32, preferred-register: '' } |
| liveins: [] |
| frameInfo: |
| isFrameAddressTaken: false |
| isReturnAddressTaken: false |
| hasStackMap: false |
| hasPatchPoint: false |
| stackSize: 0 |
| offsetAdjustment: 0 |
| maxAlignment: 4 |
| adjustsStack: false |
| hasCalls: false |
| stackProtector: '' |
| functionContext: '' |
| maxCallFrameSize: 4294967295 |
| cvBytesOfCalleeSavedRegisters: 0 |
| hasOpaqueSPAdjustment: false |
| hasVAStart: false |
| hasMustTailInVarArgFunc: false |
| hasTailCall: false |
| localFrameSize: 0 |
| savePoint: '' |
| restorePoint: '' |
| fixedStack: [] |
| stack: |
| - { id: 0, name: retval, type: default, offset: 0, size: 4, alignment: 4, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| - { id: 1, name: x, type: default, offset: 0, size: 4, alignment: 4, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| callSites: [] |
| debugValueSubstitutions: [] |
| constants: [] |
| machineFunctionInfo: {} |
| body: | |
| ; CHECK-LABEL: name: main |
| ; CHECK: bb.0.entry: |
| ; CHECK-NEXT: successors: %bb.1(0x40000000), %bb.3(0x40000000) |
| ; CHECK-NEXT: {{ $}} |
| ; CHECK-NEXT: MOV32mi %stack.0.retval, 1, $noreg, 0, $noreg, 0 :: (store (s32) into %ir.retval) |
| ; CHECK-NEXT: MOV32mi %stack.1.x, 1, $noreg, 0, $noreg, 123 :: (store (s32) into %ir.x) |
| ; CHECK-NEXT: renamable $eax = MOV32ri 45 |
| ; CHECK-NEXT: INLINEASM_BR &"mov $1, $0\0A\09jmp ${2:l}", 0 /* attdialect */, 2359306 /* regdef:GR32 */, def renamable $eax, 2359305 /* reguse:GR32 */, killed renamable $eax, 13 /* imm */, %bb.3, 12 /* clobber */, implicit-def dead early-clobber $df, 12 /* clobber */, implicit-def early-clobber $fpsw, 12 /* clobber */, implicit-def dead early-clobber $eflags, !5 |
| ; CHECK-NEXT: MOV32mr %stack.3, 1, $noreg, 0, $noreg, $eax :: (store (s32) into %stack.3) |
| ; CHECK-NEXT: MOV32mr %stack.2, 1, $noreg, 0, $noreg, killed $eax :: (store (s32) into %stack.2) |
| ; CHECK-NEXT: JMP_1 %bb.1 |
| ; CHECK-NEXT: {{ $}} |
| ; CHECK-NEXT: bb.1.asm.fallthrough: |
| ; CHECK-NEXT: successors: %bb.2(0x80000000) |
| ; CHECK-NEXT: {{ $}} |
| ; CHECK-NEXT: $eax = MOV32rm %stack.2, 1, $noreg, 0, $noreg :: (load (s32) from %stack.2) |
| ; CHECK-NEXT: MOV32mr %stack.1.x, 1, $noreg, 0, $noreg, renamable $eax :: (store (s32) into %ir.x) |
| ; CHECK-NEXT: MOV32mi %stack.1.x, 1, $noreg, 0, $noreg, 6 :: (store (s32) into %ir.x) |
| ; CHECK-NEXT: {{ $}} |
| ; CHECK-NEXT: bb.2.label: |
| ; CHECK-NEXT: renamable $eax = MOV32rm %stack.1.x, 1, $noreg, 0, $noreg :: (load (s32) from %ir.x) |
| ; CHECK-NEXT: RET64 implicit killed $eax |
| ; CHECK-NEXT: {{ $}} |
| ; CHECK-NEXT: bb.3.label.split (machine-block-address-taken, inlineasm-br-indirect-target): |
| ; CHECK-NEXT: successors: %bb.2(0x80000000) |
| ; CHECK-NEXT: liveins: $eax |
| ; CHECK-NEXT: {{ $}} |
| ; CHECK-NEXT: MOV32mr %stack.3, 1, $noreg, 0, $noreg, $eax :: (store (s32) into %stack.3) |
| ; CHECK-NEXT: $eax = MOV32rm %stack.3, 1, $noreg, 0, $noreg :: (load (s32) from %stack.3) |
| ; CHECK-NEXT: MOV32mr %stack.1.x, 1, $noreg, 0, $noreg, killed renamable $eax :: (store (s32) into %ir.x) |
| ; CHECK-NEXT: JMP_1 %bb.2 |
| bb.0.entry: |
| successors: %bb.1(0x40000000), %bb.3(0x40000000) |
| |
| MOV32mi %stack.0.retval, 1, $noreg, 0, $noreg, 0 :: (store (s32) into %ir.retval) |
| MOV32mi %stack.1.x, 1, $noreg, 0, $noreg, 123 :: (store (s32) into %ir.x) |
| %2:gr32 = MOV32ri 45 |
| INLINEASM_BR &"mov $1, $0\0A\09jmp ${2:l}", 0 /* attdialect */, 2359306 /* regdef:GR32 */, def %1, 2359305 /* reguse:GR32 */, %2, 13 /* imm */, %bb.3, 12 /* clobber */, implicit-def early-clobber $df, 12 /* clobber */, implicit-def early-clobber $fpsw, 12 /* clobber */, implicit-def early-clobber $eflags, !5 |
| %0:gr32 = COPY %1 |
| JMP_1 %bb.1 |
| |
| bb.1.asm.fallthrough: |
| successors: %bb.2(0x80000000) |
| |
| MOV32mr %stack.1.x, 1, $noreg, 0, $noreg, %0 :: (store (s32) into %ir.x) |
| MOV32mi %stack.1.x, 1, $noreg, 0, $noreg, 6 :: (store (s32) into %ir.x) |
| |
| bb.2.label: |
| %6:gr32 = MOV32rm %stack.1.x, 1, $noreg, 0, $noreg :: (load (s32) from %ir.x) |
| $eax = COPY %6 |
| RET64 implicit $eax |
| |
| bb.3.label.split (machine-block-address-taken, inlineasm-br-indirect-target): |
| successors: %bb.2(0x80000000) |
| |
| %3:gr32 = COPY %1 |
| MOV32mr %stack.1.x, 1, $noreg, 0, $noreg, %3 :: (store (s32) into %ir.x) |
| JMP_1 %bb.2 |
| |
| ... |
