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2012 Mar 01
3
[LLVMdev] Stack alignment on X86 AVX seems incorrect
Even if you explicitly specify –stack-alignment=16 the aligned movs are still generated.
It is not an issue related to ABI.
See my original mail:
./llc -mattr=+avx -stack-alignment=16 < basic.ll | grep movaps | grep ymm | grep rbp
vmovaps -176(%rbp), %ymm14
vmovaps -144(%rbp), %ymm11
vmovaps -240(%rbp), %ymm13
- Elena
From: Cameron McInally