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* [gcc(refs/users/rguenth/heads/vect-force-slp)] PR60276 fix for single-lane SLP
@ 2024-02-23 7:31 Richard Biener
0 siblings, 0 replies; 2+ messages in thread
From: Richard Biener @ 2024-02-23 7:31 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:98f3724b20b1c28a460885536fab4c3415f203f2
commit 98f3724b20b1c28a460885536fab4c3415f203f2
Author: Richard Biener <rguenther@suse.de>
Date: Thu Nov 9 11:30:22 2023 +0100
PR60276 fix for single-lane SLP
When enabling single-lane SLP and not splitting groups the fix for
PR60276 is no longer effective since it for unknown reason exempted
pure SLP. The following removes this exemption, making
gcc.dg/vect/pr60276.c PASS even with --param vect-single-lane-slp=1
PR tree-optimization/60276
* tree-vect-stmts.cc (vectorizable_load): Do not exempt
pure_slp grouped loads from the STMT_VINFO_MIN_NEG_DIST
restriction.
Diff:
---
gcc/tree-vect-stmts.cc | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/gcc/tree-vect-stmts.cc b/gcc/tree-vect-stmts.cc
index 3020f3a6766c..576db3196a79 100644
--- a/gcc/tree-vect-stmts.cc
+++ b/gcc/tree-vect-stmts.cc
@@ -9979,8 +9979,7 @@ vectorizable_load (vec_info *vinfo,
/* Invalidate assumptions made by dependence analysis when vectorization
on the unrolled body effectively re-orders stmts. */
- if (!PURE_SLP_STMT (stmt_info)
- && STMT_VINFO_MIN_NEG_DIST (stmt_info) != 0
+ if (STMT_VINFO_MIN_NEG_DIST (stmt_info) != 0
&& maybe_gt (LOOP_VINFO_VECT_FACTOR (loop_vinfo),
STMT_VINFO_MIN_NEG_DIST (stmt_info)))
{
^ permalink raw reply [flat|nested] 2+ messages in thread
* [gcc(refs/users/rguenth/heads/vect-force-slp)] PR60276 fix for single-lane SLP
@ 2023-11-09 13:03 Richard Biener
0 siblings, 0 replies; 2+ messages in thread
From: Richard Biener @ 2023-11-09 13:03 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:faece3c2dc2e952d1bc24818a15081113843c85e
commit faece3c2dc2e952d1bc24818a15081113843c85e
Author: Richard Biener <rguenther@suse.de>
Date: Thu Nov 9 11:30:22 2023 +0100
PR60276 fix for single-lane SLP
When enabling single-lane SLP and not splitting groups the fix for
PR60276 is no longer effective since it for unknown reason exempted
pure SLP. The following removes this exemption, making
gcc.dg/vect/pr60276.c PASS even with --param vect-single-lane-slp=1
PR tree-optimization/60276
* tree-vect-stmts.cc (vectorizable_load): Do not exempt
pure_slp grouped loads from the STMT_VINFO_MIN_NEG_DIST
restriction.
Diff:
---
gcc/tree-vect-stmts.cc | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/gcc/tree-vect-stmts.cc b/gcc/tree-vect-stmts.cc
index ddbcb0c50dc..ceaf573ddfe 100644
--- a/gcc/tree-vect-stmts.cc
+++ b/gcc/tree-vect-stmts.cc
@@ -9922,8 +9922,7 @@ vectorizable_load (vec_info *vinfo,
/* Invalidate assumptions made by dependence analysis when vectorization
on the unrolled body effectively re-orders stmts. */
- if (!PURE_SLP_STMT (stmt_info)
- && STMT_VINFO_MIN_NEG_DIST (stmt_info) != 0
+ if (STMT_VINFO_MIN_NEG_DIST (stmt_info) != 0
&& maybe_gt (LOOP_VINFO_VECT_FACTOR (loop_vinfo),
STMT_VINFO_MIN_NEG_DIST (stmt_info)))
{
^ permalink raw reply [flat|nested] 2+ messages in thread
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2023-11-09 13:03 Richard Biener
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