https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113291
Bug ID: 113291
Summary: [14 Regression] compilation never (?) finishes with
recursive always_inline functions at -O and above
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: ipa
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
CC: marxin at gcc dot gnu.org
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 57015
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57015&action=edit
reduced testcase
Compiler output:
$ time x86_64-pc-linux-gnu-gcc -O testcase.c -Wall -W
testcase.c:13:1: warning: 'always_inline' function might not be inlinable
[-Wattributes]
13 | f1 (void)
| ^~
testcase.c:6:1: warning: 'always_inline' function might not be inlinable
[-Wattributes]
6 | f0 (void)
| ^~
testcase.c: In function 'f0':
testcase.c:6:1: warning: infinite recursion detected [-Winfinite-recursion]
In function 'f1',
inlined from 'f0' at testcase.c:8:3:
testcase.c:16:3: note: recursive call
16 | f0 ();
| ^~~~~
testcase.c: In function 'f1':
testcase.c:13:1: warning: infinite recursion detected [-Winfinite-recursion]
13 | f1 (void)
| ^~
testcase.c:15:3: note: recursive call
15 | f1 ();
| ^~~~~
^C
real 1m21.533s
user 0m0.002s
sys 0m0.000s
$ 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-r14-7023-20240109134751-gab6224dfe12-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/14.0.0/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-r14-7023-20240109134751-gab6224dfe12-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.0 20240109 (experimental) (GCC)
