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From: "acoplan at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/113114] [14 Regression] ICE compiling gcc.c-torture/execute/pr59643.cwith -mabi=ilp32; in try_promote_writeback aarch64-ldp-fusion.cc
Date: Wed, 17 Jan 2024 15:54:25 +0000 [thread overview]
Message-ID: <bug-113114-4-9IAL3isjSh@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-113114-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113114
--- Comment #3 from Alex Coplan <acoplan at gcc dot gnu.org> ---
The following ICEs in the same way without ILP32 (reduced from a testsuite run
with -funroll-loops):
$ cat t.c
float val[128];
float x;
void bar() {
int i = 55;
for (; i >= 0; --i)
x += val[i];
}
$ gcc/xgcc -B gcc -c t.c -O -funroll-loops -mearly-ldp-fusion -mlate-ldp-fusion
during RTL pass: ldp_fusion
t.c: In function ‘bar’:
t.c:7:1: internal compiler error: in try_promote_writeback, at
config/aarch64/aarch64-ldp-fusion.cc:2675
7 | }
| ^
0x14671b3 try_promote_writeback
/home/alecop01/toolchain/src/other_gcc/gcc/config/aarch64/aarch64-ldp-fusion.cc:2675
0x14671b3 ldp_fusion_bb(rtl_ssa::bb_info*)
/home/alecop01/toolchain/src/other_gcc/gcc/config/aarch64/aarch64-ldp-fusion.cc:2706
0x1467307 ldp_fusion()
/home/alecop01/toolchain/src/other_gcc/gcc/config/aarch64/aarch64-ldp-fusion.cc:2726
0x146737b execute
/home/alecop01/toolchain/src/other_gcc/gcc/config/aarch64/aarch64-ldp-fusion.cc:2776
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.
I'll investigate. Probably we just shouldn't assert that recog succeeds here,
but I'll take a closer look at what's going on.
next prev parent reply other threads:[~2024-01-17 15:54 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-22 13:52 [Bug target/113114] New: ICE " fkastl at suse dot cz
2023-12-22 16:59 ` [Bug target/113114] [14 Regression] ICE compiling gcc.c-torture/execute/pr59643.cwith -mabi=ilp32; " pinskia at gcc dot gnu.org
2024-01-02 14:45 ` acoplan at gcc dot gnu.org
2024-01-08 12:51 ` jakub at gcc dot gnu.org
2024-01-17 15:54 ` acoplan at gcc dot gnu.org [this message]
2024-01-17 15:57 ` acoplan at gcc dot gnu.org
2024-01-17 16:31 ` acoplan at gcc dot gnu.org
2024-01-18 16:32 ` acoplan at gcc dot gnu.org
2024-01-19 10:16 ` acoplan at gcc dot gnu.org
2024-01-19 14:03 ` acoplan at gcc dot gnu.org
2024-01-23 10:58 ` cvs-commit at gcc dot gnu.org
2024-01-23 10:59 ` acoplan at gcc dot gnu.org
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