https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110695
Bug ID: 110695
Summary: RISC-V: compile gcc.dg/torture/pr105132.c crash
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: lehua.ding at rivai dot ai
Target Milestone: ---
The trunk compiler will crash when compiling the testcase
gcc.dg/torture/pr105132.c with -O1 option and only -O1 option will crash.
13.1.0 is ok.
during GIMPLE pass: sccp
dump file: /app/output.c.156t.sccp
<source>: In function 'd':
<source>:4:6: internal compiler error: in gimple_phi_arg_def_from_edge, at
gimple.h:4699
4 | void d(long f[][5][5][17], int g[][5][5][17]) {
| ^
0x7ff51b931082 __libc_start_main
???:0
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Compiler returned: 1
Reproduce code:
short a;
extern int b[];
int c;
void d(long f[][5][5][17], int g[][5][5][17]) {
for (short e = 0; e < 17; e++) {
a = g[19][2][3][e];
b[e] = c & (f[3][2][3][e] && g[19][2][3][e]);
}
}
Compiler option: -O1
URL on compiler explorer: https://godbolt.org/z/xMKaxj898
