* [PATCH] PR60276 fix for single-lane SLP
@ 2024-05-13 12:55 Richard Biener
0 siblings, 0 replies; only message in thread
From: Richard Biener @ 2024-05-13 12:55 UTC (permalink / raw)
To: gcc-patches
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
Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed.
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.
---
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 21e8fe98e44..b8a71605f1b 100644
--- a/gcc/tree-vect-stmts.cc
+++ b/gcc/tree-vect-stmts.cc
@@ -9995,8 +9995,7 @@ 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)))
{
--
2.35.3
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