https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101230
Bug ID: 101230
Summary: ice in fold_cond_expr_with_comparison
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:
int update_r_k_curr_cluster;
void update_r_k(void) {
double curr_distance = distance3d_sqr_pt4d_pt4d();
for (int cluster; cluster; cluster++)
if (0 < curr_distance) {
curr_distance = 0;
update_r_k_curr_cluster = cluster;
}
}
compiled with -c -O3 -fno-signed-zeros, does this:
$ /home/dcb/gcc/results/bin/gcc -c -O3 -fno-signed-zeros bug732.c
bug732.c: In function ‘update_r_k’:
bug732.c:3:26: warning: implicit declaration of function
‘distance3d_sqr_pt4d_pt4d’ [-Wimplicit-function-declaration]
3 | double curr_distance = distance3d_sqr_pt4d_pt4d();
| ^~~~~~~~~~~~~~~~~~~~~~~~
during GIMPLE pass: ifcvt
bug732.c:2:6: internal compiler error: in fold_cond_expr_with_comparison, at
fold-const.c:5944
Bug seems to first appear sometime between git hash 607c558804f70af2
and 5b1ce655b2504004
