https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119325
Bug ID: 119325
Summary: [15 Regression] libgomp.c/simd-math-1.c (gcn
offloading): timeout (for fmodf, remainderf) since
r15-7284-g6b56e645a7b481
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Keywords: openmp, wrong-code
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: burnus at gcc dot gnu.org
CC: ams at gcc dot gnu.org, rguenth at gcc dot gnu.org,
tschwinge at gcc dot gnu.org
Target Milestone: ---
Target: gcn
The testcase does GCN target offloading.
The following two testcases fail by causing time outs:
TEST_FUN2 (float, -10.0, 10.0, 100.0, -25.0, fmodf);
and
TEST_FUN2 (float, -50.0, 100.0, -2.0, 40.0, remainderf);
[The other checks are fine.]
That happens at least for gfx90a and gfx908.
Working: 2025-01-25T06:59 UTC
Failing: 2025-02-01T13:54 UTC
Bisecting points at r15-7284-g6b56e645a7b481
commit 6b56e645a7b481693fe6982f8f09ba2e07768bf8
Author: Richard Biener
Date: Wed Jan 29 15:09:35 2025 +0100
middle-end/118692 - ICE with out-of-bound ref expansion
The following guards the BIT_FIELD_REF expansion fallback for
MEM_REFs of entities expanded to register (or constant) further,
avoiding large out-of-bound offsets by, when the access does not
overlap the base object, expanding the offset as if it were zero.
PR middle-end/118692
* expr.cc (expand_expr_real_1): When expanding a MEM_REF
as BIT_FIELD_REF avoid large offsets for accesses not
overlapping the base object.
* gcc.dg/pr118692.c: New testcase.
