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Check whether binutils supports TSX instructions.

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Guard none/tests/amd64/tm1 accordingly.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13587
This commit is contained in:
Florian Krohm 2013-09-30 16:32:53 +00:00
parent 6fa2a5249b
commit 392c321bb4
2 changed files with 26 additions and 1 deletions
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22
configure.ac
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@ -1997,6 +1997,28 @@ AC_MSG_RESULT([no])
AM_CONDITIONAL(BUILD_AVX2_TESTS, test x$ac_have_as_avx2 = xyes)
# does the x86/amd64 assembler understand TSX instructions?
# Note, this doesn't generate a C-level symbol. It generates a
# automake-level symbol (BUILD_TSX_TESTS), used in test Makefile.am's
AC_MSG_CHECKING([if x86/amd64 assembler speaks TSX])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[
do {
__asm__ __volatile__(
" xbegin Lfoo \n\t"
"Lfoo: xend \n\t");
} while (0)
]])], [
ac_have_as_tsx=yes
AC_MSG_RESULT([yes])
], [
ac_have_as_tsx=no
AC_MSG_RESULT([no])
])
AM_CONDITIONAL(BUILD_TSX_TESTS, test x$ac_have_as_tsx = xyes)
# does the x86/amd64 assembler understand BMI1 and BMI2 instructions?
# Note, this doesn't generate a C-level symbol. It generates a
# automake-level symbol (BUILD_BMI_TESTS), used in test Makefile.am's

5
none/tests/amd64/Makefile.am
View File

@ -114,7 +114,10 @@ if BUILD_VPCLMULQDQ_TESTS
endif
endif
if BUILD_AVX2_TESTS
check_PROGRAMS += avx2-1 tm1
check_PROGRAMS += avx2-1
endif
if BUILD_TSX_TESTS
check_PROGRAMS += tm1
endif
if BUILD_BMI_TESTS
check_PROGRAMS += bmi