https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94814
Bug ID: 94814
Summary: [9 Regression] ICE: RTL check: expected code
'const_int', have 'reg' in output_3367, at
config/aarch64/atomics.md:755
Product: gcc
Version: 8.4.1
Status: UNCONFIRMED
Keywords: ice-checking
Severity: normal
Priority: P3
Component: target
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 48391
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48391&action=edit
reduced testcase
This looks like a recent regression on the 8-branch. This was fixed on the
9-branch in PR94518, but now the problem triggers on the 8-branch as well.
Compiler output:
$ /repo/build-gcc-8-branch-aarch64/./gcc/cc1plus tsan_interface_atomic.ii
void b()
Analyzing compilation unit
Performing interprocedural optimizations
<*free_lang_data> <visibility> <build_ssa_passes> <opt_local_passes>
<targetclone> <free-fnsummary> <whole-program> <fnsummary> <inline>
<free-fnsummary> <single-use> <comdats>Assembling functions:
<materialize-all-clones> void b()during RTL pass: final
tsan_interface_atomic.ii: In function 'void b()':
tsan_interface_atomic.ii:2:41: internal compiler error: RTL check: expected
code 'const_int', have 'reg' in output_3367, at config/aarch64/atomics.md:755
void b() { __sync_fetch_and_and(&a, c); }
^
0x74e65b rtl_check_failed_code1(rtx_def const*, rtx_code, char const*, int,
char const*)
/repo/gcc-8-branch/gcc/rtl.c:849
0x8d28f2 output_3367
/repo/gcc-8-branch/gcc/config/aarch64/atomics.md:755
0xd446db final_scan_insn_1
/repo/gcc-8-branch/gcc/final.c:3111
0xd44dcb final_scan_insn(rtx_insn*, _IO_FILE*, int, int, int*)
/repo/gcc-8-branch/gcc/final.c:3224
0xd450b7 final_1
/repo/gcc-8-branch/gcc/final.c:2091
0xd45ee6 rest_of_handle_final
/repo/gcc-8-branch/gcc/final.c:4677
0xd45ee6 execute
/repo/gcc-8-branch/gcc/final.c:4755
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.
Build with RTL checking is broken.
