From: Richard Biener <rguenther@suse.de>
Date: Wed, 5 Jul 2023 07:59:44 +0000 (+0200)
Subject: adjust testcase for now happening epilogue vectorization
X-Git-Tag: basepoints/gcc-15~7823
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a9c6db31cbe9bedd2dde1c50a7007a67750a0f50;p=thirdparty%2Fgcc.git

adjust testcase for now happening epilogue vectorization

gcc.dg/vect/slp-perm-9.c is reported to FAIL with -march=cascadelake
now which is because we now vectorize the epilogue with V2HImode
vectors after the recent change to not scrap too large vector
epilogues during transform but during analysis time.

The following adjusts the testcase to always use the existing alternate
N which avoids epilogue vectorization.

	* gcc.dg/vect/slp-perm-9.c: Always use alternate N.
---

diff --git a/gcc/testsuite/gcc.dg/vect/slp-perm-9.c b/gcc/testsuite/gcc.dg/vect/slp-perm-9.c
index 154c00af598d..f1f5d4f95a02 100644
--- a/gcc/testsuite/gcc.dg/vect/slp-perm-9.c
+++ b/gcc/testsuite/gcc.dg/vect/slp-perm-9.c
@@ -3,11 +3,7 @@
 #include <stdarg.h>
 #include "tree-vect.h"
 
-#if VECTOR_BITS > 512
 #define N (VECTOR_BITS * 6 / 16)
-#else
-#define N 200
-#endif
 
 void __attribute__((noinline))
 foo (unsigned short *__restrict__ pInput, unsigned short *__restrict__ pOutput)