https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114077
Bug ID: 114077
Summary: ICE in do_SUBST at combine.cc with aarch64
crosscompiler
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code, needs-bisection
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: pheeck at gcc dot gnu.org
Target Milestone: ---
Host: x86_64-linux
Target: aarch64-gnu-linux
While compiling the gcc.dg/asan/pr107317.c testsuite testcase using aarch64
crosscompiler:
aarch64-linux-gnu-gcc
/home/worker/buildworker/tiber-option-juggler/build/gcc/testsuite/gcc.dg/asan/pr107317.c
-fno-optimize-sibling-calls -fharden-control-flow-redundancy -mabi=ilp32 -Ofast
we hit this ICE:
during RTL pass: combine
/home/worker/buildworker/tiber-option-juggler/build/gcc/testsuite/gcc.dg/asan/pr107317.c:
In function ‘foo’:
/home/worker/buildworker/tiber-option-juggler/build/gcc/testsuite/gcc.dg/asan/pr107317.c:13:1:
internal compiler error: in do_SUBST, at combine.cc:698
13 | }
| ^
0x78f6e1 do_SUBST
/home/worker/buildworker/tiber-gcc-trunk-aarch64/build/gcc/combine.cc:698
0x199342c subst
/home/worker/buildworker/tiber-gcc-trunk-aarch64/build/gcc/combine.cc:5583
0x199337d subst
/home/worker/buildworker/tiber-gcc-trunk-aarch64/build/gcc/combine.cc:5536
0x1996348 try_combine
/home/worker/buildworker/tiber-gcc-trunk-aarch64/build/gcc/combine.cc:3302
0x199afd4 combine_instructions
/home/worker/buildworker/tiber-gcc-trunk-aarch64/build/gcc/combine.cc:1264
0x199afd4 rest_of_handle_combine
/home/worker/buildworker/tiber-gcc-trunk-aarch64/build/gcc/combine.cc:15091
0x199afd4 execute
/home/worker/buildworker/tiber-gcc-trunk-aarch64/build/gcc/combine.cc:15135
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.
There's an open PR for an ICE with roughly the same stacktrace: pr81874. Maybe
it's the same problem.
The testcase:
/* PR middle-end/107317 */
/* { dg-do compile { target ilp32 } } */
/* { dg-options "-fsanitize=address -ffat-lto-objects" } */
void bar (float *, float *);
void
foo (void) /* { dg-error "exceeds maximum" } */
{
float a[400000000];
float b[200000000];
bar (a, b);
}
The compiler configuration:
Using built-in specs.
COLLECT_GCC=/home/worker/cross/bin/aarch64-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/home/worker/cross/libexec/gcc/aarch64-linux-gnu/14.0.1/lto-wrapper
Target: aarch64-linux-gnu
Configured with:
/home/worker/buildworker/tiber-gcc-trunk-aarch64/build/configure
--enable-languages=c,c++,fortran,rust,m2 --disable-bootstrap
--disable-libsanitizer --disable-multilib --enable-checking=release
--prefix=/home/worker/cross --target=aarch64-linux-gnu
--with-as=/usr/bin/aarch64-suse-linux-as
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.1 20240222 (experimental)
37127ed975e09813eaa2d1cf1062055fce45dd16 (GCC)
