https://gcc.gnu.org/g:cc6a439fdab933963b00c488e221ae33d7199aeb
commit r15-18-gcc6a439fdab933963b00c488e221ae33d7199aeb Author: Alexandre Oliva <ol...@adacore.com> Date: Sun Apr 28 04:30:15 2024 -0300 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: --- gcc/testsuite/gcc.dg/vect/costmodel/ppc/costmodel-vect-31a.c | 1 + 1 file changed, 1 insertion(+) 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 454a714a309..90b5d5a7f40 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"