24 lines
912 B
Diff
24 lines
912 B
Diff
|
commit 23af890b3f04e80da783ba64e6b6d94822e01d54
|
||
|
|
Author: Ondřej Hošek <ondra.hosek@gmail.com>
|
||
|
|
Date: Wed Aug 26 04:26:50 2020 +0200
|
||
|
|
|
||
|
|
x86-64: Fix FMA4 detection in ifunc [BZ #26534]
|
||
|
|
|
||
|
|
A typo in commit 107e6a3c2212ba7a3a4ec7cae8d82d73f7c95d0b causes the
|
||
|
|
FMA4 code path to be taken on systems that support FMA, even if they do
|
||
|
|
not support FMA4. Fix this to detect FMA4.
|
||
|
|
|
||
|
|
diff --git a/sysdeps/x86_64/fpu/multiarch/ifunc-fma4.h b/sysdeps/x86_64/fpu/multiarch/ifunc-fma4.h
|
||
|
|
index 76c677198dac5cb0..6cb70ce25209ee15 100644
|
||
|
|
--- a/sysdeps/x86_64/fpu/multiarch/ifunc-fma4.h
|
||
|
|
+++ b/sysdeps/x86_64/fpu/multiarch/ifunc-fma4.h
|
||
|
|
@@ -32,7 +32,7 @@ IFUNC_SELECTOR (void)
|
||
|
|
&& CPU_FEATURE_USABLE_P (cpu_features, AVX2))
|
||
|
|
return OPTIMIZE (fma);
|
||
|
|
|
||
|
|
- if (CPU_FEATURE_USABLE_P (cpu_features, FMA))
|
||
|
|
+ if (CPU_FEATURE_USABLE_P (cpu_features, FMA4))
|
||
|
|
return OPTIMIZE (fma4);
|
||
|
|
|
||
|
|
return OPTIMIZE (sse2);
|