https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110268
Bug ID: 110268
Summary: arm MVE intrinsics support broken with LTO
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: clyon at gcc dot gnu.org
Target Milestone: ---
Since I rewrote (a lot of) MVE intrinsics, use of LTO is broken:
$ cat ~/t.c
#include <arm_mve.h>
int main(void)
{
return vaddvq(vdupq_n_s8 (1));
}
# no LTO, OK:
$ arm-none-eabi-gcc ~/t.c -march=armv8.1-m.main+mve -mfloat-abi=hard
-specs=rdimon.specs
# with LTO, broken:
$ arm-none-eabi-gcc ~/t.c -march=armv8.1-m.main+mve -mfloat-abi=hard
-specs=rdimon.specs -flto
lto1: fatal error: target specific builtin not available
compilation terminated.
lto-wrapper: fatal error: arm-none-eabi-gcc returned 1 exit status
compilation terminated.
/arm-none-eabi/bin/../lib/gcc/arm-none-eabi/14.0.0/../../../../arm-none-eabi/bin/ld:
error: lto-wrapper failed
collect2: error: ld returned 1 exit status
