[PATCH] x86: Compile PR 88465 tests with -mtune=generic

"H.J. Lu" <[email protected]>
Newsgroups gmane.comp.gcc.patches
Message-ID <CAMe9rOo01MMCK6LD0c8RxaDV9G4=kicSa7En6GhugECOAbh=7g@mail.gmail.com>
Compile PR 88465 tests with -mtune=generic to avoid

FAIL: gcc.target/i386/avx512bw-pr88465.c scan-assembler-times kxnor[dq][ \t] 2
FAIL: gcc.target/i386/avx512dq-pr88465.c scan-assembler-times kxnorb[ \t] 1
FAIL: gcc.target/i386/avx512f-pr88465.c scan-assembler-times kxnorw[ \t] 1

caused by different code sequence from different default cost models.

PR testsuite/126923
* gcc.target/i386/avx512bw-pr88465.c (dg-options): Add
-mtune=generic.
* gcc.target/i386/avx512dq-pr88465.c (dg-options): Likewise.
* gcc.target/i386/avx512f-pr88465.c (dg-options): Likewise.

-- 
H.J.
0001-x86-Compile-PR-88465-tests-with-mtune-generic.patch (text/x-patch, 2.7 KB)
From b138efc9a1b9bc4e0071583c84c26933ae972256 Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <[email protected]>
Date: Thu, 20 Aug 2026 09:38:01 +0800
Subject: [PATCH] x86: Compile PR 88465 tests with -mtune=generic

Compile PR 88465 tests with -mtune=generic to avoid

FAIL: gcc.target/i386/avx512bw-pr88465.c scan-assembler-times kxnor[dq][ \t] 2
FAIL: gcc.target/i386/avx512dq-pr88465.c scan-assembler-times kxnorb[ \t] 1
FAIL: gcc.target/i386/avx512f-pr88465.c scan-assembler-times kxnorw[ \t] 1

caused by different code sequence from different default cost models.

	PR testsuite/126923
	* gcc.target/i386/avx512bw-pr88465.c (dg-options): Add
	-mtune=generic.
	* gcc.target/i386/avx512dq-pr88465.c (dg-options): Likewise.
	* gcc.target/i386/avx512f-pr88465.c (dg-options): Likewise.

Signed-off-by: H.J. Lu <[email protected]>
---
 gcc/testsuite/gcc.target/i386/avx512bw-pr88465.c | 2 +-
 gcc/testsuite/gcc.target/i386/avx512dq-pr88465.c | 2 +-
 gcc/testsuite/gcc.target/i386/avx512f-pr88465.c  | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/gcc/testsuite/gcc.target/i386/avx512bw-pr88465.c b/gcc/testsuite/gcc.target/i386/avx512bw-pr88465.c
index 8e34bf45365..836581f650d 100644
--- a/gcc/testsuite/gcc.target/i386/avx512bw-pr88465.c
+++ b/gcc/testsuite/gcc.target/i386/avx512bw-pr88465.c
@@ -1,6 +1,6 @@
 /* PR target/88465 */
 /* { dg-do compile { target { ! ia32 } } } */
-/* { dg-options "-O2 -mavx512bw" } */
+/* { dg-options "-O2 -mtune=generic -mavx512bw" } */
 /* { dg-final { scan-assembler-times "kxor\[qd\]\[ \t]" 2 } } */
 /* { dg-final { scan-assembler-times "kxnor\[dq\]\[ \t]" 2 } } */
 
diff --git a/gcc/testsuite/gcc.target/i386/avx512dq-pr88465.c b/gcc/testsuite/gcc.target/i386/avx512dq-pr88465.c
index a11fd26a44e..b042c4d480e 100644
--- a/gcc/testsuite/gcc.target/i386/avx512dq-pr88465.c
+++ b/gcc/testsuite/gcc.target/i386/avx512dq-pr88465.c
@@ -1,6 +1,6 @@
 /* PR target/88465 */
 /* { dg-do compile } */
-/* { dg-options "-O2 -mavx512dq -mno-avx512bw" } */
+/* { dg-options "-O2 -mtune=generic -mavx512dq -mno-avx512bw" } */
 /* { dg-final { scan-assembler-times "kxorb\[ \t]" 1 } } */
 /* { dg-final { scan-assembler-times "kxnorb\[ \t]" 1 } } */
 
diff --git a/gcc/testsuite/gcc.target/i386/avx512f-pr88465.c b/gcc/testsuite/gcc.target/i386/avx512f-pr88465.c
index e66ea64db02..ba8d0995523 100644
--- a/gcc/testsuite/gcc.target/i386/avx512f-pr88465.c
+++ b/gcc/testsuite/gcc.target/i386/avx512f-pr88465.c
@@ -1,6 +1,6 @@
 /* PR target/88465 */
 /* { dg-do compile } */
-/* { dg-options "-O2 -mavx512f -mno-avx512dq -mno-avx512bw" } */
+/* { dg-options "-O2 -mtune=generic -mavx512f -mno-avx512dq -mno-avx512bw" } */
 /* { dg-final { scan-assembler-times "kxorw\[ \t]" 2 } } */
 /* { dg-final { scan-assembler-times "kxnorw\[ \t]" 1 } } */
 
-- 
2.55.0
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