5f77679356
Until now curly braces could only be used in MS inline assembly to mark block start/end.
All curly braces were removed completely at a very early stage.
This approach caused bugs like:
"m{o}v eax, ebx" turned into "mov eax, ebx" without any error.
In addition, AVX-512 added special operands (e.g., k registers), which are also surrounded by curly braces that mark them as such.
Now, we need to keep the curly braces and identify at a later stage if they are marking block start/end (if so, ignore them), or surrounding special AVX-512 operands (if so, parse them as such).
This patch fixes the bug described above and enables the use of AVX-512 special operands.
This commit is the the clang part of the patch.
The clang part of the review is: http://reviews.llvm.org/D17766
The llvm part of the review is: http://reviews.llvm.org/D17767
Differential Revision: http://reviews.llvm.org/D17766
llvm-svn: 262842
22 lines
571 B
C
22 lines
571 B
C
// REQUIRES: x86-registered-target
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// RUN: %clang_cc1 %s -triple x86_64-pc-windows-msvc -target-cpu knl -fasm-blocks -emit-llvm -o - | FileCheck %s
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void t1() {
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// CHECK: @t1
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// CHECK: call void asm sideeffect inteldialect "vaddpd zmm8, zmm27, zmm6", "~{zmm8},~{dirflag},~{fpsr},~{flags}"()
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// CHECK: ret void
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__asm {
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vaddpd zmm8, zmm27, zmm6
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}
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}
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void t2() {
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// CHECK: @t2
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// CHECK: call void asm sideeffect inteldialect "vaddpd zmm8 {k1}, zmm27, zmm6", "~{zmm8},~{dirflag},~{fpsr},~{flags}"()
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// CHECK: ret void
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__asm {
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vaddpd zmm8 {k1}, zmm27, zmm6
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}
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}
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