[gcc(refs/users/aoliva/heads/testme)] testsuite: arm: add -mcpu=unset before -march

[Alexandre Oliva]

https://gcc.gnu.org/g:4a8e43648478cef60d1e21775059059157104e75

commit 4a8e43648478cef60d1e21775059059157104e75
Author: Alexandre Oliva <oliva@adacore.com>
Date:   Fri Jan 16 19:23:07 2026 -0300

    testsuite: arm: add -mcpu=unset before -march
    
    Reset the cpu selection to the default on tests that set -march
    explicitly instead of using dg-add-options.  The latter would reset
    the cpu selection to avoid interference from TOOL_OPTIONS.
    
    
    for  gcc/testsuite/ChangeLog
    
            * gcc.dg/torture/pr120347.c: Add -mcpu=unset.
            * gcc.target/arm/bfloat16_simd_1_2.c: Likewise.
            * gcc.target/arm/bfloat16_simd_2_2.c: Likewise.
            * gcc.target/arm/bfloat16_simd_3_2.c: Likewise.

Diff:
---
 gcc/testsuite/gcc.dg/torture/pr120347.c          | 2 +-
 gcc/testsuite/gcc.target/arm/bfloat16_simd_1_2.c | 2 +-
 gcc/testsuite/gcc.target/arm/bfloat16_simd_2_2.c | 2 +-
 gcc/testsuite/gcc.target/arm/bfloat16_simd_3_2.c | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/gcc/testsuite/gcc.dg/torture/pr120347.c b/gcc/testsuite/gcc.dg/torture/pr120347.c
index a2d187bbc5c6..54a87a86156f 100644
--- a/gcc/testsuite/gcc.dg/torture/pr120347.c
+++ b/gcc/testsuite/gcc.dg/torture/pr120347.c
@@ -1,5 +1,5 @@
 /* { dg-do assemble } */
-/* { dg-additional-options "-march=armv7-a -mthumb" { target { arm_arch_v7a_ok && arm_thumb2_ok } } } */
+/* { dg-additional-options "-mcpu=unset -march=armv7-a -mthumb" { target { arm_arch_v7a_ok && arm_thumb2_ok } } } */
 
 void *end;
 void **start;
diff --git a/gcc/testsuite/gcc.target/arm/bfloat16_simd_1_2.c b/gcc/testsuite/gcc.target/arm/bfloat16_simd_1_2.c
index 95eecec2d097..299bd60086b9 100644
--- a/gcc/testsuite/gcc.target/arm/bfloat16_simd_1_2.c
+++ b/gcc/testsuite/gcc.target/arm/bfloat16_simd_1_2.c
@@ -2,7 +2,7 @@
 /* { dg-require-effective-target arm_softfp_ok } */
 /* { dg-require-effective-target arm_v8_neon_ok } */
 /* { dg-require-effective-target arm_v8_2a_bf16_neon_ok } */
-/* { dg-additional-options "-march=armv8.2-a+bf16 -mfloat-abi=softfp -mfpu=auto" } */
+/* { dg-additional-options "-mcpu=unset -march=armv8.2-a+bf16 -mfloat-abi=softfp -mfpu=auto" } */
 /* { dg-additional-options "-O3 --save-temps -std=gnu90" } */
 /* { dg-final { check-function-bodies "**" "" } } */
 
diff --git a/gcc/testsuite/gcc.target/arm/bfloat16_simd_2_2.c b/gcc/testsuite/gcc.target/arm/bfloat16_simd_2_2.c
index 175bfa5c2273..9b1ff2780417 100644
--- a/gcc/testsuite/gcc.target/arm/bfloat16_simd_2_2.c
+++ b/gcc/testsuite/gcc.target/arm/bfloat16_simd_2_2.c
@@ -2,7 +2,7 @@
 /* { dg-require-effective-target arm_softfp_ok } */
 /* { dg-require-effective-target arm_v8_neon_ok } */
 /* { dg-require-effective-target arm_v8_2a_bf16_neon_ok } */
-/* { dg-additional-options "-march=armv8.2-a -mfloat-abi=softfp -mfpu=neon-fp-armv8" } */
+/* { dg-additional-options "-mcpu=unset -march=armv8.2-a -mfloat-abi=softfp -mfpu=neon-fp-armv8" } */
 /* { dg-additional-options "-O3 --save-temps -std=gnu90" } */
 /* { dg-final { check-function-bodies "**" "" } } */
 
diff --git a/gcc/testsuite/gcc.target/arm/bfloat16_simd_3_2.c b/gcc/testsuite/gcc.target/arm/bfloat16_simd_3_2.c
index 346253b8a47d..ec9f4a0d690b 100644
--- a/gcc/testsuite/gcc.target/arm/bfloat16_simd_3_2.c
+++ b/gcc/testsuite/gcc.target/arm/bfloat16_simd_3_2.c
@@ -2,7 +2,7 @@
 /* { dg-require-effective-target arm_softfp_ok } */
 /* { dg-require-effective-target arm_v8_neon_ok } */
 /* { dg-require-effective-target arm_v8_2a_bf16_neon_ok } */
-/* { dg-additional-options "-march=armv8.2-a -mfloat-abi=softfp -mfpu=neon-fp-armv8" } */
+/* { dg-additional-options "-mcpu=unset -march=armv8.2-a -mfloat-abi=softfp -mfpu=neon-fp-armv8" } */
 /* { dg-additional-options "-O3 --save-temps -std=gnu90" } */
 /* { dg-final { check-function-bodies "**" "" } } */