forked from OSchip/llvm-project
104 lines
3.3 KiB
YAML
104 lines
3.3 KiB
YAML
# RUN: llc %s -run-pass=postra-machine-sink -o - | FileCheck %s
|
|
--- |
|
|
; Module stripped of everything, MIR below is what's interesting
|
|
; ModuleID = '<stdin>'
|
|
source_filename = "justacall.cpp"
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
; Function Attrs: noinline norecurse nounwind uwtable
|
|
define dso_local i32 @main(i32 %argc, i8** nocapture readnone %argv) local_unnamed_addr #0 {
|
|
entry:
|
|
br label %if.end
|
|
if.end:
|
|
br label %return
|
|
return:
|
|
ret i32 0
|
|
}
|
|
|
|
!0 = !{!"dummy metadata"}
|
|
!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: None)
|
|
!3 = !DIFile(filename: "justacall.cpp", directory: "/tmp")
|
|
!4 = !{}
|
|
!5 = !{!0}
|
|
!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
|
|
!14 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 7, type: !15, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: true, unit: !2, retainedNodes: !20)
|
|
!15 = !DISubroutineType(types: !16)
|
|
!16 = !{!7, !7}
|
|
!20 = !{!21}
|
|
!21 = !DILocalVariable(name: "argc", arg: 1, scope: !14, file: !3, line: 7, type: !7)
|
|
|
|
...
|
|
---
|
|
name: main
|
|
alignment: 16
|
|
exposesReturnsTwice: false
|
|
legalized: false
|
|
regBankSelected: false
|
|
selected: false
|
|
failedISel: false
|
|
tracksRegLiveness: true
|
|
hasWinCFI: false
|
|
registers:
|
|
liveins:
|
|
- { reg: '$edi', virtual-reg: '' }
|
|
frameInfo:
|
|
isFrameAddressTaken: false
|
|
isReturnAddressTaken: false
|
|
hasStackMap: false
|
|
hasPatchPoint: false
|
|
stackSize: 0
|
|
offsetAdjustment: 0
|
|
maxAlignment: 0
|
|
adjustsStack: false
|
|
hasCalls: true
|
|
stackProtector: ''
|
|
maxCallFrameSize: 4294967295
|
|
cvBytesOfCalleeSavedRegisters: 0
|
|
hasOpaqueSPAdjustment: false
|
|
hasVAStart: false
|
|
hasMustTailInVarArgFunc: false
|
|
localFrameSize: 0
|
|
savePoint: ''
|
|
restorePoint: ''
|
|
fixedStack:
|
|
stack:
|
|
constants:
|
|
body: |
|
|
bb.0.entry:
|
|
successors: %bb.2(0x40000000), %bb.1(0x40000000)
|
|
liveins: $edi
|
|
|
|
; Test that the DBG_VALUE on ebx below is sunk with the def of ebx, despite
|
|
; not being adjacent to the def, see PR38952
|
|
|
|
DBG_VALUE $edi, $noreg
|
|
renamable $ebx = COPY $edi
|
|
renamable $eax = MOV32r0 implicit-def dead $eflags
|
|
DBG_VALUE $ebx, $noreg
|
|
CMP32ri $edi, 255, implicit-def $eflags
|
|
JCC_1 %bb.2, 15, implicit killed $eflags
|
|
JMP_1 %bb.1
|
|
|
|
bb.1.if.end:
|
|
; CHECK-LABEL: bb.1.if.end
|
|
successors: %bb.2(0x80000000)
|
|
liveins: $ebx
|
|
|
|
; CHECK: $ebx = COPY $edi
|
|
; CHECK-NEXT: DBG_VALUE $ebx
|
|
renamable $rdx = MOVSX64rr32 renamable $ebx
|
|
renamable $rdx = nsw SHL64ri killed renamable $rdx, 2, implicit-def dead $eflags
|
|
ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
|
|
$rdi = MOV32ri64 0
|
|
$esi = MOV32r0 implicit-def dead $eflags
|
|
CALL64pcrel32 &memset, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit killed $esi, implicit $rdx, implicit-def $rsp, implicit-def $ssp, implicit-def dead $rax
|
|
ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
|
|
|
|
bb.2.return:
|
|
liveins: $eax
|
|
|
|
RET 0, $eax
|
|
|
|
...
|