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llvm-mirror/test/CodeGen/MIR/X86/early-clobber-register-flag.mir
2016-08-24 22:34:06 +00:00

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# RUN: llc -march=x86-64 -run-pass none -o - %s | FileCheck %s
# This test ensures that the MIR parser parses the 'early-clobber' register
# flags correctly.
--- |
declare void @foo(i32)
define void @test(i32 %a, i32 %b) #0 {
entry:
%c = add i32 %a, %b
call void asm sideeffect "nop", "~{ax},~{di}"()
call void @foo(i32 %c)
ret void
}
attributes #0 = { optsize }
...
---
name: test
tracksRegLiveness: true
liveins:
- { reg: '%edi' }
- { reg: '%esi' }
frameInfo:
stackSize: 8
adjustsStack: true
hasCalls: true
body: |
bb.0.entry:
liveins: %edi, %esi
frame-setup PUSH64r undef %rax, implicit-def %rsp, implicit %rsp
CFI_INSTRUCTION def_cfa_offset 16
%ecx = COPY %edi
%ecx = ADD32rr killed %ecx, killed %esi, implicit-def dead %eflags
; CHECK: INLINEASM $nop, 1, 12, implicit-def dead early-clobber %ax, 12, implicit-def dead early-clobber %di
INLINEASM $nop, 1, 12, implicit-def dead early-clobber %ax, 12, implicit-def dead early-clobber %di
%edi = COPY killed %ecx
CALL64pcrel32 @foo, csr_64, implicit %rsp, implicit %edi, implicit-def %rsp
%rax = POP64r implicit-def %rsp, implicit %rsp
RETQ
...