https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105686
Bug ID: 105686
Summary: [10/11/12/13 Regression] ICE: verify_flow_info failed:
missing REG_EH_REGION note at the end of bb 8 with
-fnon-call-exceptions
Product: gcc
Version: 13.0
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 53013
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53013&action=edit
reduced testcase
Compiler output:
$ aarch64-unknown-linux-gnu-gcc -O -fno-delete-dead-exceptions
-fnon-call-exceptions -fexceptions -fno-tree-dce -fno-tree-forwprop testcase.c
testcase.c: In function 'foo':
testcase.c:11:1: error: missing REG_EH_REGION note at the end of bb 8
11 | }
| ^
testcase.c:11:1: error: missing REG_EH_REGION note at the end of bb 7
testcase.c:11:1: error: missing REG_EH_REGION note at the end of bb 6
testcase.c:11:1: error: missing REG_EH_REGION note at the end of bb 5
testcase.c:11:1: error: missing REG_EH_REGION note at the end of bb 4
testcase.c:11:1: error: missing REG_EH_REGION note at the end of bb 3
during RTL pass: cprop_hardreg
testcase.c:11:1: internal compiler error: verify_flow_info failed
0xc42133 verify_flow_info()
/repo/gcc-trunk/gcc/cfghooks.cc:284
0x1055eba execute_function_todo
/repo/gcc-trunk/gcc/passes.cc:2097
0x105643b execute_todo
/repo/gcc-trunk/gcc/passes.cc:2139
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-r13-694-20220520170416-gd5cf2a1f15e-checking-yes-rtl-df-extra-aarch64/bin/../libexec/gcc/aarch64-unknown-linux-gnu/13.0.0/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 --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r13-694-20220520170416-gd5cf2a1f15e-checking-yes-rtl-df-extra-aarch64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 13.0.0 20220520 (experimental) (GCC)
