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* [Bug middle-end/102808] New: [12 regression] sve/mask_gather_load_1.c fails since g:9b2ad21ab3ebc21a3408108327fa1a7cbedaf217
@ 2021-10-18 7:33 clyon at gcc dot gnu.org
2021-10-18 8:45 ` [Bug middle-end/102808] " rguenth at gcc dot gnu.org
2021-12-03 16:43 ` rsandifo at gcc dot gnu.org
0 siblings, 2 replies; 3+ messages in thread
From: clyon at gcc dot gnu.org @ 2021-10-18 7:33 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102808
Bug ID: 102808
Summary: [12 regression] sve/mask_gather_load_1.c fails since
g:9b2ad21ab3ebc21a3408108327fa1a7cbedaf217
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: clyon at gcc dot gnu.org
Target Milestone: ---
Hi,
Since g:9b2ad21ab3ebc21a3408108327fa1a7cbedaf217, I have noticed a few
regressions in the aarch64 tests:
FAIL:
gcc:gcc.target/aarch64/sve/aarch64-sve.exp=gcc.target/aarch64/sve/mask_gather_load_1.c
scan-assembler-times \\tld1d\\tz[0-9]+\\.d, p[0-7]/z, \\[x[0-9]+, z[0-9]+\\.d,
lsl 3\\]\\n 9
FAIL:
gcc:gcc.target/aarch64/sve/aarch64-sve.exp=gcc.target/aarch64/sve/mask_gather_load_2.c
scan-assembler-times \\tld1d\\tz[0-9]+\\.d, p[0-7]/z, \\[x[0-9]+, z[0-9]+\\.d,
lsl 3\\]\\n 9
FAIL:
gcc:gcc.target/aarch64/sve/aarch64-sve.exp=gcc.target/aarch64/sve/mask_gather_load_3.c
scan-assembler-times \\tld1d\\tz[0-9]+\\.d, p[0-7]/z, \\[x[0-9]+,
z[0-9]+\\.d\\]\\n 9
FAIL:
gcc:gcc.target/aarch64/sve/aarch64-sve.exp=gcc.target/aarch64/sve/mask_gather_load_4.c
scan-assembler-times \\tld1d\\tz[0-9]+\\.d, p[0-7]/z, \\[x[0-9]+,
z[0-9]+\\.d\\]\\n 9
FAIL:
gcc:gcc.target/aarch64/sve/aarch64-sve.exp=gcc.target/aarch64/sve/mask_gather_load_7.c
scan-assembler-times \\tld1d\\tz[0-9]+\\.d, p[0-7]/z, \\[x[0-9]+, z[0-9]+\\.d,
lsl 3\\]\\n 36
FAIL:
gcc:gcc.target/aarch64/sve/aarch64-sve.exp=gcc.target/aarch64/sve/mask_scatter_store_1.c
scan-assembler-times \\tst1d\\tz[0-9]+\\.d, p[0-7], \\[x[0-9]+, z[0-9]+\\.d,
lsl 3\\]\\n 9
FAIL:
gcc:gcc.target/aarch64/sve/aarch64-sve.exp=gcc.target/aarch64/sve/mask_scatter_store_2.c
scan-assembler-times \\tst1d\\tz[0-9]+\\.d, p[0-7], \\[x[0-9]+, z[0-9]+\\.d,
lsl 3\\]\\n 9
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug middle-end/102808] [12 regression] sve/mask_gather_load_1.c fails since g:9b2ad21ab3ebc21a3408108327fa1a7cbedaf217
2021-10-18 7:33 [Bug middle-end/102808] New: [12 regression] sve/mask_gather_load_1.c fails since g:9b2ad21ab3ebc21a3408108327fa1a7cbedaf217 clyon at gcc dot gnu.org
@ 2021-10-18 8:45 ` rguenth at gcc dot gnu.org
2021-12-03 16:43 ` rsandifo at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: rguenth at gcc dot gnu.org @ 2021-10-18 8:45 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102808
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |12.0
CC| |rguenth at gcc dot gnu.org,
| |rsandifo at gcc dot gnu.org
Keywords| |missed-optimization
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Can arm folks please have a look here? Cases like
for (int i = 0; i < n; ++i) \
if (cmp1[i] == cmp2[i]) \
dest[i] += src[indices[i]];
involve undefined integer overflow ops conditionally executed which are now
rewritten to unsigned. On x86 the only fallout in gather/scatter testcases
was with invariants and vect_check_gather_scatter plus/minus handling but
I mitigated that.
Note the testcases only scan for assembler, not for vectorization results
and thus they might simply be too fragile.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug middle-end/102808] [12 regression] sve/mask_gather_load_1.c fails since g:9b2ad21ab3ebc21a3408108327fa1a7cbedaf217
2021-10-18 7:33 [Bug middle-end/102808] New: [12 regression] sve/mask_gather_load_1.c fails since g:9b2ad21ab3ebc21a3408108327fa1a7cbedaf217 clyon at gcc dot gnu.org
2021-10-18 8:45 ` [Bug middle-end/102808] " rguenth at gcc dot gnu.org
@ 2021-12-03 16:43 ` rsandifo at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: rsandifo at gcc dot gnu.org @ 2021-12-03 16:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102808
rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|UNCONFIRMED |RESOLVED
--- Comment #2 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> ---
Fixed by g:8bb81b3c4945dbae8d490e7a4054ddeb5a3b506c.
(Forgot there was a PR for this, oops.)
^ permalink raw reply [flat|nested] 3+ messages in thread
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2021-10-18 7:33 [Bug middle-end/102808] New: [12 regression] sve/mask_gather_load_1.c fails since g:9b2ad21ab3ebc21a3408108327fa1a7cbedaf217 clyon at gcc dot gnu.org
2021-10-18 8:45 ` [Bug middle-end/102808] " rguenth at gcc dot gnu.org
2021-12-03 16:43 ` rsandifo at gcc dot gnu.org
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