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| author | Srinath Parvathaneni <srinath.parvathaneni@arm.com> | 2020-10-16 14:53:28 +0100 |
|---|---|---|
| committer | Srinath Parvathaneni <srinath.parvathaneni@arm.com> | 2020-10-16 14:53:40 +0100 |
| commit | 90042c43a92c452a5f9f3afbfcdad511ea09a54f (patch) | |
| tree | ffb38fd53681df7203601c5ecd05d595881bd37c /gcc | |
| parent | 6c6e0cafa38cee8309f37b846cb7db813a472a54 (diff) | |
| download | gcc-90042c43a92c452a5f9f3afbfcdad511ea09a54f.zip gcc-90042c43a92c452a5f9f3afbfcdad511ea09a54f.tar.gz gcc-90042c43a92c452a5f9f3afbfcdad511ea09a54f.tar.bz2 | |
arm: Fix the warning -mcpu=cortex-m55 conflicting with -march=armv8.1-m.main (pr97327).
This patch fixes (PR97327) the warning -mcpu=cortex-m55 conflicts with -march=armv8.1-m.main
for -mfloat-abi=soft by adding the isa_bit_mve_float to clearing FP bit list.
The following combination are fixed with this patch:
$ cat bug.c
int main(){
return 0;
}
$ arm-none-eabi-gcc -mcpu=cortex-m55 -mfloat-abi=soft bug.c -c
$ arm-none-eabi-gcc -mcpu=cortex-m55 -mfloat-abi=soft -march=armv8.1-m.main+mve bug.c -c
Before this patch for above combinations:
cc1: warning: switch '-mcpu=cortex-m55' conflicts with '-march=armv8.1-m.main' switch
After this patch for above combinations no warning/errors.
gcc/ChangeLog:
2020-10-16 Srinath Parvathaneni <srinath.parvathaneni@arm.com>
PR target/97327
* config/arm/arm.c (fp_bitlist): Add isa_bit_mve_float to FP bits array.
gcc/testsuite/ChangeLog:
PR target/97327
* gcc.target/arm/mve/intrinsics/pr97327.c: New test.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/arm/arm.c | 3 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/arm/mve/intrinsics/pr97327.c | 8 |
2 files changed, 10 insertions, 1 deletions
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c index 0b8c5fa..dfadaca 100644 --- a/gcc/config/arm/arm.c +++ b/gcc/config/arm/arm.c @@ -3429,8 +3429,9 @@ arm_option_override (void) { static const enum isa_feature fpu_bitlist_internal[] = { ISA_ALL_FPU_INTERNAL, isa_nobit }; + /* isa_bit_mve_float is also part of FP bit list for arch v8.1-m.main. */ static const enum isa_feature fp_bitlist[] - = { ISA_ALL_FP, isa_nobit }; + = { ISA_ALL_FP, isa_bit_mve_float, isa_nobit }; static const enum isa_feature quirk_bitlist[] = { ISA_ALL_QUIRKS, isa_nobit}; cl_target_option opts; diff --git a/gcc/testsuite/gcc.target/arm/mve/intrinsics/pr97327.c b/gcc/testsuite/gcc.target/arm/mve/intrinsics/pr97327.c new file mode 100644 index 0000000..8f6d360 --- /dev/null +++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/pr97327.c @@ -0,0 +1,8 @@ +/* { dg-require-effective-target arm_v8_1m_mve_fp_ok } */ +/* { dg-skip-if "Incompatible float ABI" { *-*-* } { "-mfloat-abi=hard" } { "" } } */ +/* { dg-additional-options "-mcpu=cortex-m55 -mfloat-abi=soft -mfpu=auto -Werror" } */ + +int main () +{ + return 0; +} |