infernap12/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2026-01-28 03:58:21 +00:00
Code Issues Packages Projects Releases Wiki Activity

8365312: GCC 12 cannot compile SVE on aarch64 with auto-var-init pattern

Browse Source 
Reviewed-by: kbarrett, ihse, erikj
This commit is contained in:
Fei Gao 2025-08-19 08:22:40 +00:00
parent 812434c420
commit 999761d0f6
1 changed files with 11 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
make/autoconf/flags-cflags.m4
View File

@ -954,6 +954,17 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_CPU_DEP],
[
AC_MSG_RESULT([yes])
$2SVE_CFLAGS="-march=armv8-a+sve"
# Switching the initialization mode with gcc from 'pattern' to 'zero'
# avoids the use of unsupported `__builtin_clear_padding` for variable
# length aggregates
if test "x$DEBUG_LEVEL" != xrelease && test "x$TOOLCHAIN_TYPE" = xgcc ; then
INIT_ZERO_FLAG="-ftrivial-auto-var-init=zero"
FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$INIT_ZERO_FLAG],
IF_TRUE: [
$2SVE_CFLAGS="${$2SVE_CFLAGS} $INIT_ZERO_FLAG"
]
)
fi
],
[
AC_MSG_RESULT([no])