https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111479
Bug ID: 111479
Summary: [12/13 regression] aarch64 SVE ICE: in
compute_live_loop_exits, at tree-ssa-loop-manip.cc:248
Product: gcc
Version: 13.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: nsz at gcc dot gnu.org
Target Milestone: ---
maybe related to bug 111478
$ cat bug.c
float a, b, c;
void *d;
int e, f, g;
void p() {
float i = a;
for (;;)
for (e = 0; e < g; e++) {
float j = c, k = b, l = k, h = j, m = 0.0, n = 0.0;
for (f = 0; f < e; f++) {
float o = b;
m = n = o;
}
((float *)d)[2 * e] = l;
((float *)d)[e] = h;
((float *)d)[2 * e] += m - i * n;
((float *)d)[2 * e + 1] += n + i * m;
}
}
$ gcc -c -O3 -march=armv8-a+sve bug.c
during GIMPLE pass: vect
<source>: In function 'p':
<source>:4:6: internal compiler error: in compute_live_loop_exits, at
tree-ssa-loop-manip.cc:248
4 | void p() {
| ^
0x10ca603 compute_live_loop_exits
/data/jenkins/workspace/GNU-toolchain/fsf-13/src/gcc/gcc/tree-ssa-loop-manip.cc:248
0x10ca603 add_exit_phis_var
/data/jenkins/workspace/GNU-toolchain/fsf-13/src/gcc/gcc/tree-ssa-loop-manip.cc:330
0x10ca603 add_exit_phis
/data/jenkins/workspace/GNU-toolchain/fsf-13/src/gcc/gcc/tree-ssa-loop-manip.cc:391
0x10ca603 rewrite_into_loop_closed_ssa_1
/data/jenkins/workspace/GNU-toolchain/fsf-13/src/gcc/gcc/tree-ssa-loop-manip.cc:604
0x10ca603 rewrite_into_loop_closed_ssa(bitmap_head*, unsigned int)
/data/jenkins/workspace/GNU-toolchain/fsf-13/src/gcc/gcc/tree-ssa-loop-manip.cc:626
0x1262514 execute
/data/jenkins/workspace/GNU-toolchain/fsf-13/src/gcc/gcc/tree-vectorizer.cc:1361
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
Compiler returned: 1
