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x86-64: Simplify minimum ISA check ifdef conditional with if 

Replace minimum ISA check ifdef conditional with if.  Since
MINIMUM_X86_ISA_LEVEL and AVX_X86_ISA_LEVEL are compile time constants,
compiler will perform constant folding optimization, getting same
results.

Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
(cherry picked from commit b6e3898194)
This commit is contained in:
Sunil K Pandey 2024-02-29 17:57:02 -08:00 committed by H.J. Lu
parent 7dfafa866d
commit 554716698b
1 changed files with 8 additions and 11 deletions
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19
sysdeps/x86/cpu-features.c
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@ -1117,9 +1117,8 @@ no_cpuid:
TUNABLE_CALLBACK (set_x86_shstk));
#endif
#if MINIMUM_X86_ISA_LEVEL < AVX_X86_ISA_LEVEL
if (GLRO(dl_x86_cpu_features).xsave_state_size != 0)
#endif
if (MINIMUM_X86_ISA_LEVEL >= AVX_X86_ISA_LEVEL
|| (GLRO(dl_x86_cpu_features).xsave_state_size != 0))
{
if (CPU_FEATURE_USABLE_P (cpu_features, XSAVEC))
{
@ -1140,24 +1139,22 @@ no_cpuid:
#endif
}
}
#if MINIMUM_X86_ISA_LEVEL < AVX_X86_ISA_LEVEL
else
{
# ifdef __x86_64__
#ifdef __x86_64__
GLRO(dl_x86_64_runtime_resolve) = _dl_runtime_resolve_fxsave;
# ifdef SHARED
# ifdef SHARED
GLRO(dl_x86_tlsdesc_dynamic) = _dl_tlsdesc_dynamic_fxsave;
# endif
# else
# ifdef SHARED
# endif
#else
# ifdef SHARED
if (CPU_FEATURE_USABLE_P (cpu_features, FXSR))
GLRO(dl_x86_tlsdesc_dynamic) = _dl_tlsdesc_dynamic_fxsave;
else
GLRO(dl_x86_tlsdesc_dynamic) = _dl_tlsdesc_dynamic_fnsave;
# endif
# endif
}
#endif
}
#ifndef SHARED
/* NB: In libc.a, call init_cacheinfo. */