https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116927
Bug ID: 116927
Summary: during RTL pass: early_ra: ICE: verify_flow_info
failed: missing REG_EH_REGION note at the end of bb 4
with fnon-call-exceptions
-fharden-control-flow-redundancy
-fno-delete-dead-exceptions
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: aarch64-unknown-linux-gnu
Created attachment 59256
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59256&action=edit
reduced testcase
Compiler output:
$ aarch64-unknown-linux-gnu-gcc -Os -fnon-call-exceptions
-fharden-control-flow-redundancy -fno-delete-dead-exceptions testcase.c
testcase.c: In function 'foo':
testcase.c:5:1: error: missing REG_EH_REGION note at the end of bb 4
5 | }
| ^
during RTL pass: early_ra
testcase.c:5:1: internal compiler error: verify_flow_info failed
0x265902e internal_error(char const*, ...)
/repo/gcc-trunk/gcc/diagnostic-global-context.cc:517
0xdf950e verify_flow_info()
/repo/gcc-trunk/gcc/cfghooks.cc:287
0x124da37 execute_function_todo
/repo/gcc-trunk/gcc/passes.cc:2113
0x124df8e execute_todo
/repo/gcc-trunk/gcc/passes.cc:2155
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.
$ aarch64-unknown-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-aarch64/bin/aarch64-unknown-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r15-3987-20241001125221-g60fa7f51c84-checking-yes-rtl-df-extra-aarch64/bin/../libexec/gcc/aarch64-unknown-linux-gnu/15.0.0/lto-wrapper
Target: aarch64-unknown-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--with-cloog --with-ppl --with-isl
--with-sysroot=/usr/aarch64-unknown-linux-gnu --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --target=aarch64-unknown-linux-gnu
--with-ld=/usr/bin/aarch64-unknown-linux-gnu-ld
--with-as=/usr/bin/aarch64-unknown-linux-gnu-as --enable-libsanitizer
--disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r15-3987-20241001125221-g60fa7f51c84-checking-yes-rtl-df-extra-aarch64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 15.0.0 20241001 (experimental) (GCC)
