Hi!
My r16-1398 patch broke bootstrap on aarch64-linux and powerpc64le-linux
at least. Fixed with r16-1408.
The following patch just adds testcases with which the bug can be reproduced
also on x86_64-linux where it hasn't been caught by the testsuite (while
there are 2 tests with it, both where compiled with -mno-abm -mno-popcnt
and so didn't trigger the right path). This patch just includes those
tests in 4 further ones, two with -mpopcnt and two with -mabm flags.
Tested on x86_64-linux -m32/-m64 before/after r16-1408, committed to trunk
as obvious.
2025-06-11 Jakub Jelinek <ja...@redhat.com>
PR tree-optimization/90693
* gcc.target/i386/pr90693-3.c: New test.
* gcc.target/i386/pr90693-4.c: New test.
* gcc.target/i386/pr90693-5.c: New test.
* gcc.target/i386/pr90693-6.c: New test.
--- gcc/testsuite/gcc.target/i386/pr90693-3.c.jj 2025-06-11
07:12:16.659685893 +0200
+++ gcc/testsuite/gcc.target/i386/pr90693-3.c 2025-06-11 07:12:10.225780752
+0200
@@ -0,0 +1,5 @@
+/* PR tree-optimization/90693 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -mpopcnt" } */
+
+#include "pr90693.c"
--- gcc/testsuite/gcc.target/i386/pr90693-4.c.jj 2025-06-11
07:12:48.847211343 +0200
+++ gcc/testsuite/gcc.target/i386/pr90693-4.c 2025-06-11 07:12:55.988106062
+0200
@@ -0,0 +1,5 @@
+/* PR tree-optimization/90693 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -mpopcnt" } */
+
+#include "pr90693-2.c"
--- gcc/testsuite/gcc.target/i386/pr90693-5.c.jj 2025-06-11
07:13:13.633845905 +0200
+++ gcc/testsuite/gcc.target/i386/pr90693-5.c 2025-06-11 07:13:29.005619277
+0200
@@ -0,0 +1,5 @@
+/* PR tree-optimization/90693 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -mabm" } */
+
+#include "pr90693.c"
--- gcc/testsuite/gcc.target/i386/pr90693-6.c.jj 2025-06-11
07:13:16.461804210 +0200
+++ gcc/testsuite/gcc.target/i386/pr90693-6.c 2025-06-11 07:13:21.349732146
+0200
@@ -0,0 +1,5 @@
+/* PR tree-optimization/90693 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -mabm" } */
+
+#include "pr90693-2.c"
Jakub
