forked from rpms/glibc
62 lines
1.7 KiB
Diff
62 lines
1.7 KiB
Diff
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commit 7b92f46f04c6cbce19d19ae1099628431858996c
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Author: Sunil K Pandey <skpgkp2@gmail.com>
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Date: Thu Feb 29 17:57:02 2024 -0800
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x86-64: Simplify minimum ISA check ifdef conditional with if
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Replace minimum ISA check ifdef conditional with if. Since
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MINIMUM_X86_ISA_LEVEL and AVX_X86_ISA_LEVEL are compile time constants,
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compiler will perform constant folding optimization, getting same
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results.
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Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
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(cherry picked from commit b6e3898194bbae78910bbe9cd086937014961e45)
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diff --git a/sysdeps/x86/cpu-features.c b/sysdeps/x86/cpu-features.c
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index b8abe733abe54fc4..3d7c2819d7cc6643 100644
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--- a/sysdeps/x86/cpu-features.c
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+++ b/sysdeps/x86/cpu-features.c
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@@ -1199,9 +1199,8 @@ no_cpuid:
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TUNABLE_CALLBACK (set_x86_shstk));
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#endif
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-#if MINIMUM_X86_ISA_LEVEL < AVX_X86_ISA_LEVEL
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- if (GLRO(dl_x86_cpu_features).xsave_state_size != 0)
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-#endif
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+ if (MINIMUM_X86_ISA_LEVEL >= AVX_X86_ISA_LEVEL
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+ || (GLRO(dl_x86_cpu_features).xsave_state_size != 0))
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{
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if (CPU_FEATURE_USABLE_P (cpu_features, XSAVEC))
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{
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@@ -1222,24 +1221,22 @@ no_cpuid:
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#endif
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}
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}
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-#if MINIMUM_X86_ISA_LEVEL < AVX_X86_ISA_LEVEL
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else
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{
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-# ifdef __x86_64__
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+#ifdef __x86_64__
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GLRO(dl_x86_64_runtime_resolve) = _dl_runtime_resolve_fxsave;
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-# ifdef SHARED
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+# ifdef SHARED
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GLRO(dl_x86_tlsdesc_dynamic) = _dl_tlsdesc_dynamic_fxsave;
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-# endif
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-# else
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-# ifdef SHARED
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+# endif
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+#else
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+# ifdef SHARED
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if (CPU_FEATURE_USABLE_P (cpu_features, FXSR))
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GLRO(dl_x86_tlsdesc_dynamic) = _dl_tlsdesc_dynamic_fxsave;
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else
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GLRO(dl_x86_tlsdesc_dynamic) = _dl_tlsdesc_dynamic_fnsave;
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-# endif
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# endif
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- }
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#endif
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+ }
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#ifdef SHARED
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# ifdef __x86_64__
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