https://gcc.gnu.org/g:d8d70b783765361a8acef70fc9b54db526cd6ff5
commit r15-862-gd8d70b783765361a8acef70fc9b54db526cd6ff5
Author: Richard Biener <rguent...@suse.de>
Date: Tue May 28 15:55:59 2024 +0200
target/115254 - fix gcc.dg/vect/vect-gather-4.c dump scanning
The dump scanning is supposed to check that we do not merge two
sligtly different gathers into one SLP node but since we now
SLP the store scanning for "ectorizing stmts using SLP" is no
longer good. Instead the following makes us look for
"stmt 1 .* = .MASK" which would be how the second lane of an SLP
node looks like. We have to handle both .MASK_GATHER_LOAD (for
targets with ifun mask gathers) and .MASK_LOAD (for ones without).
Tested on x86_64-linux with and without native gather and on GCN
where this now avoids a FAIL.
PR target/115254
* gcc.dg/vect/vect-gather-4.c: Adjust dump scan.
Diff:
---
gcc/testsuite/gcc.dg/vect/vect-gather-4.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/gcc/testsuite/gcc.dg/vect/vect-gather-4.c
b/gcc/testsuite/gcc.dg/vect/vect-gather-4.c
index d18094d6982..edd9a6783c2 100644
--- a/gcc/testsuite/gcc.dg/vect/vect-gather-4.c
+++ b/gcc/testsuite/gcc.dg/vect/vect-gather-4.c
@@ -45,4 +45,7 @@ f3 (int *restrict y, int *restrict x, int *restrict indices)
}
}
-/* { dg-final { scan-tree-dump-not "vectorizing stmts using SLP" vect } } */
+/* We do not want to see a two-lane .MASK_LOAD or .MASK_GATHER_LOAD since
+ the gathers are different on each lane. This is a bit fragile and
+ should possibly be turned into a runtime test. */
+/* { dg-final { scan-tree-dump-not "stmt 1 \[^\r\n\]* = .MASK" vect } } */
