On Thu, Aug 31, 2023 at 10:24:10AM -0700, Andrew Pinski via Gcc-patches wrote:
> This patch adds the following match patterns to optimize these:
> /* (a != b) ? (a - b) : 0 -> (a - b) */
These tests FAIL on i686-linux, with
.../gcc/testsuite/gcc.dg/pr110915-1.c:8:1: warning: MMX vector return without
MMX enabled changes the ABI [-Wpsabi]
.../gcc/testsuite/gcc.dg/pr110915-1.c:7:15: warning: MMX vector argument
without MMX enabled changes the ABI [-Wpsabi]
excess warnings. I've added -Wno-psabi to quiet that up, plus I think
it is undesirable to define macros like vector before including C library
headers in case the header would use that identifier in non-obfuscated
form somewhere.
Tested with
make check-g++ RUNTESTFLAGS='--target_board=unix\{-m32,-m32/-march=i686,-m64\}
dg.exp=vectcond-1.C'
on x86_64-linux which previously FAILed, committed to trunk as obvious.
2023-09-01 Jakub Jelinek <ja...@redhat.com>
PR tree-optimization/19832
* g++.dg/opt/vectcond-1.C: Add -Wno-psabi to dg-options.
--- gcc/testsuite/g++.dg/opt/vectcond-1.C.jj 2023-09-01 12:15:36.072430927
+0200
+++ gcc/testsuite/g++.dg/opt/vectcond-1.C 2023-09-01 14:20:22.688739458
+0200
@@ -1,5 +1,5 @@
/* { dg-do compile } */
-/* { dg-options "-O2 -fdump-tree-ccp1 -fdump-tree-optimized" } */
+/* { dg-options "-O2 -fdump-tree-ccp1 -fdump-tree-optimized -Wno-psabi" } */
/* This is the vector version of these optimizations. */
/* PR tree-optimization/19832 */
Jakub
