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Prevent duplicate VZEROUPPER instructions

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Kovid Goyal
2024-02-12 13:47:24 +05:30
parent a7c06b38e6
commit 29a574a4bc
1 changed files with 7 additions and 0 deletions
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7
setup.py
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@@ -712,6 +712,13 @@ def get_source_specific_cflags(env: Env, src: str) -> List[str]:
if src in ('kitty/simd-string-128.c', 'kitty/simd-string-256.c'):
if env.binary_arch.isa in (ISA.AMD64, ISA.X86):
ans.append('-msse4.2' if '128' in src else '-mavx2')
if '256' in src:
# We have manual vzeroupper so prevent compiler from emitting it causing duplicates
if is_gcc(env.cc):
ans.append('-mno-vzeroupper')
else:
ans.append('-mllvm')
ans.append('-x86-use-vzeroupper=0')
elif env.binary_arch.isa != ISA.ARM64:
ans.append('-DKITTY_NO_SIMD')
elif src.startswith('3rdparty/base64/lib/arch/'):