Building glibc with -march=rv64gcv causes GCC to auto-vectorize generic
C code (e.g. calc_state_hash in regex), generating RVV instructions. On
hardware without the V extension, this results in SIGILL.
Change-Id: Ic80d8e1e337b2091b24cd50d4c3f4916d10f3593
---
configure | 5 -----
configure.ac | 2 +-
2 files changed, 1 insertion(+), 6 deletions(-)
diff --git a/configure b/configure
index d610aa16..6328fcee 100755
--- a/configure
+++ b/configure
@@ -4159,11 +4159,6 @@ fi
if test "x$enable_multilib" = xyes
then :
glibc_multilib_names="rv32imac-ilp32 rv32gc-ilp32d rv64imac-lp64
rv64gc-lp64d"
- # Vector extension is currently not supported on Big-endian systems.
- if test "x$endian" = xlittle
- then :
- glibc_multilib_names+=" rv64gcv-lp64d"
- fi
else $as_nop
glibc_multilib_names="$with_arch-$with_abi"
diff --git a/configure.ac b/configure.ac
index 4e534faa..dd32ec6c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -158,7 +158,7 @@ AS_IF([test "x$enable_multilib" = xyes || test
"x$with_multilib_generator" != xn
[AC_SUBST(multilib_flags,--disable-multilib)])
AS_IF([test "x$enable_multilib" = xyes],
- [AC_SUBST(glibc_multilib_names,"rv32imac-ilp32 rv32gc-ilp32d
rv64imac-lp64 rv64gc-lp64d rv64gcv-lp64d")],
+ [AC_SUBST(glibc_multilib_names,"rv32imac-ilp32 rv32gc-ilp32d
rv64imac-lp64 rv64gc-lp64d")],
[AC_SUBST(glibc_multilib_names,"$with_arch-$with_abi")])
AS_IF([test "x$enable_multilib" = xyes],
--
2.43.0
