https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103900
Bug ID: 103900
Summary: ICE: in expand_expr_real_2, at expr.c:9771 with -O
-fno-tree-dce -fno-tree-dse
Product: gcc
Version: 12.0
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: x86_64-pc-linux-gnu
Created attachment 52115
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52115&action=edit
auto-reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -O -fno-tree-dce -fno-tree-dse testcase.c
during RTL pass: expand
testcase.c: In function 'foo0':
testcase.c:11:1: internal compiler error: in expand_expr_real_2, at expr.c:9771
11 | foo0() {
| ^~~~
0x6c4ecd expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
/repo/gcc-trunk/gcc/expr.c:9771
0xe66f8f expand_gimple_stmt_1
/repo/gcc-trunk/gcc/cfgexpand.c:3967
0xe66f8f expand_gimple_stmt
/repo/gcc-trunk/gcc/cfgexpand.c:4028
0xe6cd18 expand_gimple_basic_block
/repo/gcc-trunk/gcc/cfgexpand.c:6069
0xe6eea7 execute
/repo/gcc-trunk/gcc/cfgexpand.c:6795
Please submit a full bug report,
with preprocessed source if appropriate.
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-r12-6199-20220104114958-g05da96886ef-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/12.0.0/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-r12-6199-20220104114958-g05da96886ef-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.0.0 20220104 (experimental) (GCC)
