https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96128
Bug ID: 96128
Summary: [11 Regression] ICE in do_store_flag, at expr.c:12247
since
r11-1445-g502d63b6d6141597bb18fd23c87736a1b384cf8f
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: rguenth at gcc dot gnu.org
Target Milestone: ---
Host: x86_64-linux-gnu
Target: s390x-linux-gnu
Since my revision the following fails:
$ ./xgcc -B.
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/opaque-vector.c
-march=z13 -c
during RTL pass: expand
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/opaque-vector.c: In
function ‘f’:
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/opaque-vector.c:1:65:
internal compiler error: in do_store_flag, at expr.c:12247
1 | #define B_TEST(TYPE) { TYPE v __attribute__((vector_size(16)));
(void)((v < v) < v); }
|
^~~~~~~~~~~~~~~~~~~
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/opaque-vector.c:7:17:
note: in expansion of macro ‘B_TEST’
7 | #define T(TYPE) B_TEST(TYPE) T_TEST(TYPE)
| ^~~~~~
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/opaque-vector.c:16:3:
note: in expansion of macro ‘T’
16 | T(short)
| ^
0xc498c7 do_store_flag
/home/marxin/Programming/gcc2/gcc/expr.c:12247
0xc3c9a6 expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
/home/marxin/Programming/gcc2/gcc/expr.c:9608
0xaa600b expand_gimple_stmt_1
/home/marxin/Programming/gcc2/gcc/cfgexpand.c:3786
0xaa6258 expand_gimple_stmt
/home/marxin/Programming/gcc2/gcc/cfgexpand.c:3847
0xaae714 expand_gimple_basic_block
/home/marxin/Programming/gcc2/gcc/cfgexpand.c:5888
0xab0576 execute
/home/marxin/Programming/gcc2/gcc/cfgexpand.c:6572
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.
The change is now that the comparison is expanded in GIMPLE to:
(opaque-vector.c.005t.gimple)
f ()
{
{
vector(8) short int v;
_1 = v > { 0, 0, 0, 0, 0, 0, 0, 0 };
}
{
vector(4) int v;
_2 = v > { 0, 0, 0, 0 };
}
{
vector(2) long int v;
_3 = v > { 0, 0 };
}
{
vector(2) long long int v;
_4 = v > { 0, 0 };
}
}
while before the revision it was to
f ()
{
{
vector(8) short int v;
}
{
vector(4) int v;
}
{
vector(2) long int v;
}
{
vector(2) long long int v;
}
}
What kind of target hook is responsible for that?
