https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113818
Bug ID: 113818
Summary: ICE: verify_gimple failed: missing 'PHI' def with -Os
-fnon-call-exceptions -finstrument-functions-once and
_BitInt()
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 57352
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57352&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -Os -fnon-call-exceptions -finstrument-functions-once
testcase.c
testcase.c: In function 'foo':
testcase.c:9:1: error: missing 'PHI' def
9 | foo (void)
| ^~~
testcase.c:9:1: error: missing 'PHI' def
testcase.c:9:1: error: missing 'PHI' def
finally_tmp.7_7 = PHI <0(5), 2(10), 1(9), (8), (6), (7)>
during GIMPLE pass: bitintlower
testcase.c:9:1: internal compiler error: verify_gimple failed
0x155b7cd verify_gimple_in_cfg(function*, bool, bool)
/repo/gcc-trunk/gcc/tree-cfg.cc:5666
0x13cac94 execute_function_todo
/repo/gcc-trunk/gcc/passes.cc:2088
0x13cb1ee execute_todo
/repo/gcc-trunk/gcc/passes.cc:2142
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.
$ x86_64-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r14-8869-20240207154951-g8636c538b68-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/14.0.1/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--disable-bootstrap --with-cloog --with-ppl --with-isl
--build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu
--target=x86_64-pc-linux-gnu --with-ld=/usr/bin/x86_64-pc-linux-gnu-ld
--with-as=/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r14-8869-20240207154951-g8636c538b68-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.1 20240207 (experimental) (GCC)
