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[ARM][GAS] ARMv8.2 should enable ARMv8.1 NEON instructions.

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GAS fails to recognize march=armv8.2-a as a superset of march=armv8.1-a
when assembling NEON instructions. The patch corrects this, making
-march=armv8.2-a -mfpu=neon-fp-armv8 enable the NEON intructions
introduced with ARMv8.1-A.

include/
2016-06-30  Matthew Wahab  <matthew.wahab@arm.com>

	* opcode/arm.h (ARM_ARCH_V8_2a): Add FPU_NEON_EXT_RDMA to the set
	of enabled FPU features.

gas/
2016-06-30  Matthew Wahab  <matthew.wahab@arm.com>

	* testsuite/gas/arm/armv8_2+rdma.d: New.
This commit is contained in:
Matthew Wahab
2016-06-30 10:46:51 +01:00
parent c7be441465
commit 534dbe460e
4 changed files with 89 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/opcode/arm.h
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@ -266,7 +266,7 @@
#define ARM_ARCH_V8_1A ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_1A, \
CRC_EXT_ARMV8 | FPU_NEON_EXT_RDMA)
#define ARM_ARCH_V8_2A ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_2A, \
CRC_EXT_ARMV8)
CRC_EXT_ARMV8 | FPU_NEON_EXT_RDMA)
#define ARM_ARCH_V8M_BASE ARM_FEATURE_CORE (ARM_AEXT_V8M_BASE, ARM_AEXT2_V8M)
#define ARM_ARCH_V8M_MAIN ARM_FEATURE_CORE (ARM_AEXT_V8M_MAIN, \
ARM_AEXT2_V8M_MAIN)