https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104961
Bug ID: 104961
Summary: compilation never (?) finishes at -Og
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: compile-time-hog, memory-hog
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 52638
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52638&action=edit
reduced testcase
Compiler output:
$ time x86_64-pc-linux-gnu-gcc -O testcase.c -c
real 0m0.034s
user 0m0.028s
sys 0m0.007s
$ time x86_64-pc-linux-gnu-gcc -Og testcase.c -c
^C
real 2m5.070s
user 0m0.001s
sys 0m0.000s
The compilation doesn't seem to ever finish. The cc1 binary is just eating more
memory over time.
$ 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-r12-7654-20220315102422-gda24fce323e-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/12.0.1/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-r12-7654-20220315102422-gda24fce323e-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.0.1 20220315 (experimental) (GCC)
