[PATCH] x86: Compile some BF16 tests with -mno-avx512bf16 -mno-avxneconvert

From e8fdd609571355923d7c2a877c38e579d9e40b41 Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <[email protected]>
Date: Thu, 20 Aug 2026 10:42:08 +0800
Subject: [PATCH] x86: Compile some BF16 tests with -mno-avx512bf16
 -mno-avxneconvert
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Compile some BF16 tests with -mno-avx512bf16 -mno-avxneconvert to avoid

FAIL: gcc.target/i386/sse2-bfloat16-scalar-typecheck.c (test for excess errors)
FAIL: gcc.target/i386/vect-bfloat16-typecheck_1.c (test for excess errors)
FAIL: gcc.target/i386/vect-bfloat16-typecheck_2.c (test for excess errors)

with errors like

sse2-bfloat16-scalar-typecheck.c:16:1: warning: ‘__bfloat16’ is redefined from typedef ‘short’ to real ‘__bf16’ since GCC 13.1, be careful of implicit conversion between ‘__bf16’ and ‘short’; an explicit bitcast may be needed here

when AVXNECONVERT or AVX512BF16 are enabled by default.

	PR testsuite/126923
	* gcc.target/i386/sse2-bfloat16-scalar-typecheck.c (dg-options):
	Add -mno-avx512bf16 -mno-avxneconvert.
	* gcc.target/i386/vect-bfloat16-typecheck_1.c (dg-options):
	Likewise.
	* gcc.target/i386/vect-bfloat16-typecheck_2.c (dg-options):
	Likewise.

Signed-off-by: H.J. Lu <[email protected]>

Signed-off-by: H.J. Lu <[email protected]>
---
 gcc/testsuite/gcc.target/i386/sse2-bfloat16-scalar-typecheck.c | 2 +-
 gcc/testsuite/gcc.target/i386/vect-bfloat16-typecheck_1.c      | 2 +-
 gcc/testsuite/gcc.target/i386/vect-bfloat16-typecheck_2.c      | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/gcc/testsuite/gcc.target/i386/sse2-bfloat16-scalar-typecheck.c b/gcc/testsuite/gcc.target/i386/sse2-bfloat16-scalar-typecheck.c
index 599b02632fd..a8f371788be 100644
--- a/gcc/testsuite/gcc.target/i386/sse2-bfloat16-scalar-typecheck.c
+++ b/gcc/testsuite/gcc.target/i386/sse2-bfloat16-scalar-typecheck.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-msse2 -O2" } */
+/* { dg-options "-msse2 -mno-avx512bf16 -mno-avxneconvert -O2" } */
 
 
 __bf16 glob_bfloat;
diff --git a/gcc/testsuite/gcc.target/i386/vect-bfloat16-typecheck_1.c b/gcc/testsuite/gcc.target/i386/vect-bfloat16-typecheck_1.c
index fdcead3ff42..afc6ee67613 100644
--- a/gcc/testsuite/gcc.target/i386/vect-bfloat16-typecheck_1.c
+++ b/gcc/testsuite/gcc.target/i386/vect-bfloat16-typecheck_1.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-mavx512fp16 -O2" } */
+/* { dg-options "-mavx512fp16 -mno-avx512bf16 -mno-avxneconvert -O2" } */
 
 #include <immintrin.h>
 
diff --git a/gcc/testsuite/gcc.target/i386/vect-bfloat16-typecheck_2.c b/gcc/testsuite/gcc.target/i386/vect-bfloat16-typecheck_2.c
index 17ca3aad652..362f66ba480 100644
--- a/gcc/testsuite/gcc.target/i386/vect-bfloat16-typecheck_2.c
+++ b/gcc/testsuite/gcc.target/i386/vect-bfloat16-typecheck_2.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-mavx512fp16 -O2" } */
+/* { dg-options "-mavx512fp16 -mno-avx512bf16 -mno-avxneconvert -O2" } */
 
 #include <immintrin.h>
 
-- 
2.55.0