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Merge pull request #2765 from martin-frbg/issue2760 

Add memory barrier to the PPC blas_lock implementation for Linux
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Martin Kroeker 2020-08-11 22:40:17 +02:00 committed by GitHub
parent 2a4bb797db c9d32674ea
commit 4573cb2f43
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common_power.h
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@ -105,6 +105,7 @@ static void INLINE blas_lock(volatile unsigned long *address){
" bne- 1f\n" " bne- 1f\n"
" stwcx. %2,0, %1\n" " stwcx. %2,0, %1\n"
" bne- 0b\n" " bne- 0b\n"
" isync\n"
"1: " "1: "
: "=&r"(ret) : "=&r"(ret)
: "r"(address), "r" (val) : "r"(address), "r" (val)