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Use asm volatile during benchmarks.

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guangli-dai 2022-12-15 10:54:33 -08:00 • committed by Qi Wang
parent e8b28908de
commit 09e4b38fb1
6 changed files with 51 additions and 7 deletions
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16
configure.ac
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@ -546,6 +546,22 @@ typedef unsigned __int32 uint32_t;
;;
esac
AC_DEFINE_UNQUOTED([LG_VADDR], [$LG_VADDR], [ ])
AC_CACHE_CHECK([asm volatile support],
[je_cv_asm_volatile],
AC_RUN_IFELSE([AC_LANG_PROGRAM(
[[
]],
[[
void* ptr;
asm volatile("" : "+r"(ptr));
return 0;
]])],
[je_cv_asm_volatile=yes],
[je_cv_asm_volatile=no],
[je_cv_asm_volatile=no]))
if test "x${je_cv_asm_volatile}" = "xyes"; then
AC_DEFINE([JEMALLOC_HAVE_ASM_VOLATILE], [ ], [ ])
fi
LD_PRELOAD_VAR="LD_PRELOAD"
so="so"