Bug 31387 - Need to check that glibc built with FMA and AVX2 doesn't have SSE instructions
Summary: Need to check that glibc built with FMA and AVX2 doesn't have SSE instructions
Status: NEW
Alias: None
Product: glibc
Classification: Unclassified
Component: build (show other bugs)
Version: 2.40
: P2 normal
Target Milestone: ---
Assignee: Not yet assigned to anyone
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2024-02-15 22:03 UTC by H.J. Lu
Modified: 2024-02-16 16:12 UTC (History)
2 users (show)

See Also:
Host:
Target: x86-64
Build:
Last reconfirmed:

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Description H.J. Lu 2024-02-15 22:03:59 UTC 
When glibc is built with FMA and AVX2, there should be no SSE instructions.
Comment 1 H.J. Lu 2024-02-15 23:07:00 UTC 
Pass -msse-check=error to assembler to disallow SSE instructions when glibc
is built with FMA and AVX2.
Comment 2 H.J. Lu 2024-02-16 16:12:57 UTC 
-Wa,-msse-check=warning reports:

../sysdeps/x86_64/dl-trampoline.h:226: Warning: SSE instruction `movaps' is used
../sysdeps/x86_64/dl-trampoline.h:227: Warning: SSE instruction `movaps' is used
../sysdeps/x86_64/dl-trampoline.h:228: Warning: SSE instruction `movaps' is used
../sysdeps/x86_64/dl-trampoline.h:229: Warning: SSE instruction `movaps' is used
../sysdeps/x86_64/dl-trampoline.h:230: Warning: SSE instruction `movaps' is used
../sysdeps/x86_64/dl-trampoline.h:231: Warning: SSE instruction `movaps' is used
../sysdeps/x86_64/dl-trampoline.h:232: Warning: SSE instruction `movaps' is used
../sysdeps/x86_64/dl-trampoline.h:233: Warning: SSE instruction `movaps' is used
../sysdeps/x86_64/dl-trampoline.h:272: Warning: SSE instruction `movaps' is used
../sysdeps/x86_64/dl-trampoline.h:273: Warning: SSE instruction `movaps' is used
../sysdeps/x86_64/dl-trampoline.h:274: Warning: SSE instruction `movaps' is used
../sysdeps/x86_64/dl-trampoline.h:275: Warning: SSE instruction `movaps' is used
../sysdeps/x86_64/dl-trampoline.h:276: Warning: SSE instruction `movaps' is used
../sysdeps/x86_64/dl-trampoline.h:277: Warning: SSE instruction `movaps' is used
../sysdeps/x86_64/dl-trampoline.h:278: Warning: SSE instruction `movaps' is used
../sysdeps/x86_64/dl-trampoline.h:279: Warning: SSE instruction `movaps' is used
../sysdeps/x86_64/dl-trampoline.h:432: Warning: SSE instruction `movaps' is used
../sysdeps/x86_64/dl-trampoline.h:433: Warning: SSE instruction `movaps' is used
../sysdeps/x86_64/dl-trampoline.h:458: Warning: SSE instruction `movaps' is used
../sysdeps/x86_64/dl-trampoline.h:459: Warning: SSE instruction `movaps' is used
../sysdeps/x86_64/fpu/fraiseexcpt.c:36: Warning: SSE instruction `divss' is used
../sysdeps/x86_64/fpu/fraiseexcpt.c:46: Warning: SSE instruction `divss' is used
../sysdeps/x86_64/fpu/s_fmaxf.S:24: Warning: SSE instruction `ucomiss' is used
../sysdeps/x86_64/fpu/s_fmaxf.S:26: Warning: SSE instruction `maxss' is used
../sysdeps/x86_64/fpu/s_fmaxf.S:29: Warning: SSE instruction `ucomiss' is used
../sysdeps/x86_64/fpu/s_fmaxf.S:32: Warning: SSE instruction `movss' is used
../sysdeps/x86_64/fpu/s_fmaxf.S:35: Warning: SSE instruction `movss' is used
../sysdeps/x86_64/fpu/s_fmaxf.S:39: Warning: SSE instruction `ucomiss' is used
../sysdeps/x86_64/fpu/s_fmaxf.S:42: Warning: SSE instruction `movss' is used
../sysdeps/x86_64/fpu/s_fmaxf.S:48: Warning: SSE instruction `addss' is used
../sysdeps/x86_64/fpu/s_fmax.S:24: Warning: SSE instruction `ucomisd' is used
../sysdeps/x86_64/fpu/s_fmax.S:26: Warning: SSE instruction `maxsd' is used
../sysdeps/x86_64/fpu/s_fmax.S:29: Warning: SSE instruction `ucomisd' is used
../sysdeps/x86_64/fpu/s_fmax.S:32: Warning: SSE instruction `movsd' is used
../sysdeps/x86_64/fpu/s_fmax.S:35: Warning: SSE instruction `movsd' is used
../sysdeps/x86_64/fpu/s_fmax.S:39: Warning: SSE instruction `ucomisd' is used
../sysdeps/x86_64/fpu/s_fmax.S:42: Warning: SSE instruction `movsd' is used
../sysdeps/x86_64/fpu/s_fmax.S:48: Warning: SSE instruction `addsd' is used
../sysdeps/x86_64/fpu/s_fminf.S:24: Warning: SSE instruction `ucomiss' is used
../sysdeps/x86_64/fpu/s_fminf.S:26: Warning: SSE instruction `minss' is used
../sysdeps/x86_64/fpu/s_fminf.S:29: Warning: SSE instruction `ucomiss' is used
../sysdeps/x86_64/fpu/s_fminf.S:32: Warning: SSE instruction `movss' is used
../sysdeps/x86_64/fpu/s_fminf.S:35: Warning: SSE instruction `movss' is used
../sysdeps/x86_64/fpu/s_fminf.S:39: Warning: SSE instruction `ucomiss' is used
../sysdeps/x86_64/fpu/s_fminf.S:42: Warning: SSE instruction `movss' is used
../sysdeps/x86_64/fpu/s_fminf.S:48: Warning: SSE instruction `addss' is used
../sysdeps/x86_64/fpu/s_fmin.S:24: Warning: SSE instruction `ucomisd' is used
../sysdeps/x86_64/fpu/s_fmin.S:26: Warning: SSE instruction `minsd' is used
../sysdeps/x86_64/fpu/s_fmin.S:29: Warning: SSE instruction `ucomisd' is used
../sysdeps/x86_64/fpu/s_fmin.S:32: Warning: SSE instruction `movsd' is used
../sysdeps/x86_64/fpu/s_fmin.S:35: Warning: SSE instruction `movsd' is used
../sysdeps/x86_64/fpu/s_fmin.S:39: Warning: SSE instruction `ucomisd' is used
../sysdeps/x86_64/fpu/s_fmin.S:42: Warning: SSE instruction `movsd' is used
../sysdeps/x86_64/fpu/s_fmin.S:48: Warning: SSE instruction `addsd' is used
../sysdeps/x86_64/fpu/s_llrintf.S:25: Warning: SSE instruction `cvtss2si' is used
../sysdeps/x86_64/fpu/s_llrint.S:25: Warning: SSE instruction `cvtsd2si' is used
../sysdeps/x86_64/fpu/s_signbitf.S:22: Warning: SSE instruction `pmovmskb' is used
../sysdeps/x86_64/fpu/s_signbit.S:22: Warning: SSE instruction `pmovmskb' is used