From: Alexandre Oliva <oliva@adacore.com>
Date: Sun, 28 Apr 2024 07:30:15 +0000 (-0300)
Subject: disable ldist for test, to restore vectorizing-candidate loop
X-Git-Tag: basepoints/gcc-16~9535
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=cc6a439fdab933963b00c488e221ae33d7199aeb;p=thirdparty%2Fgcc.git

disable ldist for test, to restore vectorizing-candidate loop

The loop we're supposed to try to vectorize in
gcc.dg/vect/costmodel/ppc/costmodel-vect-31a.c is turned into a memset
before the vectorizer runs.

Various other tests in this set have already run into this, and the
solution has been to disable this loop distribution transformation,
enabled at -O2, so that the vectorizer gets a chance to transform the
loop and, in this testcase, fail to do so.


for  gcc/testsuite/ChangeLog

	* gcc.dg/vect/costmodel/ppc/costmodel-vect-31a.c: Disable
	ldist.
---

diff --git a/gcc/testsuite/gcc.dg/vect/costmodel/ppc/costmodel-vect-31a.c b/gcc/testsuite/gcc.dg/vect/costmodel/ppc/costmodel-vect-31a.c
index 454a714a3091..90b5d5a7f400 100644
--- a/gcc/testsuite/gcc.dg/vect/costmodel/ppc/costmodel-vect-31a.c
+++ b/gcc/testsuite/gcc.dg/vect/costmodel/ppc/costmodel-vect-31a.c
@@ -1,4 +1,5 @@
 /* { dg-require-effective-target vect_int } */
+/* { dg-additional-options "-fno-tree-loop-distribute-patterns" } */
 
 #include <stdarg.h>
 #include "../../tree-vect.h"