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arm: Fix emission of Tag_ABI_VFP_args with MVE and -mfloat-abi=hard (PR target/99773)

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When compiling with -mfloat-abi=hard -march=armv8.1-m.main+mve, we
want to emit Tag_ABI_VFP_args even though we are not emitting
floating-point instructions (we need "+mve.fp" for that), because we
use MVE registers to pass FP arguments.

This patch removes the condition on (! TARGET_SOFT_FLOAT) because this
is a case where TARGET_SOFT_FLOAT is true, and TARGET_HARD_FLOAT_ABI
is true too.

2021-03-30  Richard Earnshaw  <rearnsha@arm.com>

	gcc/
	PR target/99773
	* config/arm/arm.c (arm_file_start): Fix emission of
	Tag_ABI_VFP_args attribute.
This commit is contained in:
Christophe Lyon 2021-03-30 12:26:33 +00:00
parent 41d57b2a97
commit 6f93a7c7fc
1 changed files with 4 additions and 7 deletions
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11
gcc/config/arm/arm.c
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@ -28150,14 +28150,11 @@ arm_file_start (void)
if (print_tune_info)
arm_print_tune_info ();
if (! TARGET_SOFT_FLOAT)
{
if (TARGET_HARD_FLOAT && TARGET_VFP_SINGLE)
arm_emit_eabi_attribute ("Tag_ABI_HardFP_use", 27, 1);
if (TARGET_HARD_FLOAT && TARGET_VFP_SINGLE)
arm_emit_eabi_attribute ("Tag_ABI_HardFP_use", 27, 1);
if (TARGET_HARD_FLOAT_ABI)
arm_emit_eabi_attribute ("Tag_ABI_VFP_args", 28, 1);
}
if (TARGET_HARD_FLOAT_ABI)
arm_emit_eabi_attribute ("Tag_ABI_VFP_args", 28, 1);
/* Some of these attributes only apply when the corresponding features
are used. However we don't have any easy way of figuring this out.