https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102281
Bug ID: 102281
Summary: -ftrivial-auto-var-init=zero causes ice
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
For this C++ code:
long _mm_set_epi64x___q0;
__attribute__((__vector_size__(2 * sizeof(long)))) long long _mm_set_epi64x() {
return (__attribute__((__vector_size__(2 * sizeof(long)))) long long){
_mm_set_epi64x___q0};
}
compiled by recent gcc and compiler flag -ftrivial-auto-var-init=zero,
does this:
$ /home/dcb/gcc/results/bin/gcc -ftrivial-auto-var-init=zero bug756.cc
bug756.cc: In function ‘__vector(2) long long int _mm_set_epi64x()’:
bug756.cc:2:62: error: invalid operand in return statement
2 | _attribute__((__vector_size__(2 * sizeof(long)))) long long
_mm_set_epi64x() {
|
^~~~~~~~~~~~~~
D.2371
return D.2371;
bug756.cc:2:62: internal compiler error: ‘verify_gimple’ failed
0x105dc3a verify_gimple_in_seq(gimple*)
../../trunk.git/gcc/tree-cfg.c:5228
Taking the new flag off causes the code to compile ok:
$ /home/dcb/gcc/results/bin/gcc -c bug756.cc
$
