https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110673
Bug ID: 110673
Summary: [14 regression] ICE when buliding opus (internal
compiler error: in gimple_phi_arg_def_from_edge, at
gimple.h:4699)
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: sjames at gcc dot gnu.org
Target Milestone: ---
Created attachment 55546
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55546&action=edit
test_unit_entropy.c.i
Hit with opus-1.4.
```
# aarch64-unknown-linux-gnu-gcc -Icelt/tests/test_unit_entropy.p -Icelt/tests
-I../opus-1.4/celt/tests -I. -I../opus-1.4 -Iinclude -I../opus-1.4/include
-Icelt -I../opus-1.4/celt -Isilk -I../opus-1.4/silk -fdiagnostics-color=always
-D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wextra -std=gnu99 -DOPUS_BUILD
-DHAVE_CONFIG_H -fvisibility=hidden -Wcast-align -Wnested-externs -Wshadow
-Wstrict-prototypes -fstack-protector-strong -O3 -pipe -mcpu=native
-fdiagnostics-color=always -ggdb3 -MD -MQ
celt/tests/test_unit_entropy.p/test_unit_entropy.c.o -MF
celt/tests/test_unit_entropy.p/test_unit_entropy.c.o.d -o
celt/tests/test_unit_entropy.p/test_unit_entropy.c.o -c
../opus-1.4/celt/tests/test_unit_entropy.c -save-temps
aarch64-unknown-linux-gnu-gcc: warning: ‘-pipe’ ignored because ‘-save-temps’
specified
during GIMPLE pass: sccp
../opus-1.4/celt/tests/test_unit_entropy.c: In function ‘main’:
../opus-1.4/celt/tests/test_unit_entropy.c:53:5: internal compiler error: in
gimple_phi_arg_def_from_edge, at gimple.h:4699
53 | int main(int _argc,char **_argv){
| ^~~~
0xaaaad781675b gimple_phi_arg_def_from_edge(gphi const*, edge_def const*)
/usr/src/debug/sys-devel/gcc-14.0.0.9999/gcc-14.0.0.9999/gcc/gimple.h:4699
0xaaaad8160f8b gimple_phi_arg_def_from_edge(gphi const*, edge_def const*)
/usr/src/debug/sys-devel/gcc-14.0.0.9999/gcc-14.0.0.9999/gcc/gimple-iterator.h:133
0xaaaad8160f8b final_value_replacement_loop(loop*)
/usr/src/debug/sys-devel/gcc-14.0.0.9999/gcc-14.0.0.9999/gcc/tree-scalar-evolution.cc:3732
0xaaaad822566b execute
/usr/src/debug/sys-devel/gcc-14.0.0.9999/gcc-14.0.0.9999/gcc/tree-ssa-loop.cc:411
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://bugs.gentoo.org/> for instructions.
```
Reproduces with `gcc -c test_unit_entropy.c.i -O3`.
