bf834b2629
This is preparation for D113707, where I want to make `-masm=intel`
emit `asm inteldialect` instructions.
`{movq %rbx, %rax|mov rax, rbx}` is supposed to evaluate to the bit
between { and | for att and to the bit between | and } for intel.
Since intel will become `asm inteldialect`, which alls EmitMSInlineAsmStr(),
EmitMSInlineAsmStr() has to support variants as well.
(clang translates `{...|...}` to `$(...$|...$)`. I'm not sure why
it doesn't just send along only the first `...` or the second `...`
to LLVM, but given the notes in PR23933 let's not do a big
reorganization in this codepath.)
Differential Revision: https://reviews.llvm.org/D113932
35 lines
1.2 KiB
LLVM
35 lines
1.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=x86_64-unknown-linux-gnu %s -o - \
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; RUN: | FileCheck --check-prefix=OUTPUT_ATT %s
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; RUN: llc -mtriple=x86_64-unknown-linux-gnu %s -x86-asm-syntax=intel -o - \
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; RUN: | FileCheck --check-prefix=OUTPUT_INTEL %s
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define void @f() {
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; OUTPUT_ATT-LABEL: f:
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; OUTPUT_ATT: # %bb.0:
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; OUTPUT_ATT-NEXT: #APP
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; OUTPUT_ATT-NEXT: movq %rbx, %rax
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; OUTPUT_ATT-NEXT: #NO_APP
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; OUTPUT_ATT-NEXT: #APP
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; OUTPUT_ATT-EMPTY:
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; OUTPUT_ATT-NEXT: movq %rbx, %rax
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; OUTPUT_ATT-EMPTY:
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; OUTPUT_ATT-NEXT: #NO_APP
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; OUTPUT_ATT-NEXT: retq
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;
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; OUTPUT_INTEL-LABEL: f:
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; OUTPUT_INTEL: # %bb.0:
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; OUTPUT_INTEL-NEXT: #APP
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; OUTPUT_INTEL-NEXT: mov rax, rbx
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; OUTPUT_INTEL-NEXT: #NO_APP
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; OUTPUT_INTEL-NEXT: #APP
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; OUTPUT_INTEL-EMPTY:
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; OUTPUT_INTEL-NEXT: mov rax, rbx
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; OUTPUT_INTEL-EMPTY:
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; OUTPUT_INTEL-NEXT: #NO_APP
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; OUTPUT_INTEL-NEXT: ret
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call void asm sideeffect "$(movq %rbx, %rax $|mov rax, rbx$)", "~{dirflag},~{fpsr},~{flags}"()
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call void asm sideeffect inteldialect "$(movq %rbx, %rax $|mov rax, rbx$)", "~{dirflag},~{fpsr},~{flags}"()
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ret void
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}
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