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

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

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@ -1,3 +1,7 @@
2016-06-30 Matthew Wahab <matthew.wahab@arm.com>
* testsuite/gas/arm/armv8_2+rdma.d: New.
2016-06-29 H.J. Lu <hongjiu.lu@intel.com>
* NEWS: Mention --enable-compressed-debug-sections=gas is the

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@ -0,0 +1,79 @@
#name: Valid ARMv8.2-A with ARMv8.1-A NEON instructions.
#as: -march=armv8.2-a -mfpu=neon-fp-armv8
#objdump: -dr
#skip: *-*-*coff *-*-pe *-*-wince *-*-*aout* *-*-netbsd
#source: armv8-a+rdma.s
.*: +file format .*arm.*
Disassembly of section .text:
00000000 <.*>:
0: f3110b12 vqrdmlah.s16 d0, d1, d2
4: f3120b54 vqrdmlah.s16 q0, q1, q2
8: f3210b12 vqrdmlah.s32 d0, d1, d2
c: f3220b54 vqrdmlah.s32 q0, q1, q2
10: f3110c12 vqrdmlsh.s16 d0, d1, d2
14: f3120c54 vqrdmlsh.s16 q0, q1, q2
18: f3210c12 vqrdmlsh.s32 d0, d1, d2
1c: f3220c54 vqrdmlsh.s32 q0, q1, q2
20: f2910e42 vqrdmlah.s16 d0, d1, d2\[0\]
24: f2910e4a vqrdmlah.s16 d0, d1, d2\[1\]
28: f2910e62 vqrdmlah.s16 d0, d1, d2\[2\]
2c: f2910e6a vqrdmlah.s16 d0, d1, d2\[3\]
30: f3920e42 vqrdmlah.s16 q0, q1, d2\[0\]
34: f3920e4a vqrdmlah.s16 q0, q1, d2\[1\]
38: f3920e62 vqrdmlah.s16 q0, q1, d2\[2\]
3c: f3920e6a vqrdmlah.s16 q0, q1, d2\[3\]
40: f2a10e42 vqrdmlah.s32 d0, d1, d2\[0\]
44: f2a10e62 vqrdmlah.s32 d0, d1, d2\[1\]
48: f3a20e42 vqrdmlah.s32 q0, q1, d2\[0\]
4c: f3a20e62 vqrdmlah.s32 q0, q1, d2\[1\]
50: f2910f42 vqrdmlsh.s16 d0, d1, d2\[0\]
54: f2910f4a vqrdmlsh.s16 d0, d1, d2\[1\]
58: f2910f62 vqrdmlsh.s16 d0, d1, d2\[2\]
5c: f2910f6a vqrdmlsh.s16 d0, d1, d2\[3\]
60: f3920f42 vqrdmlsh.s16 q0, q1, d2\[0\]
64: f3920f4a vqrdmlsh.s16 q0, q1, d2\[1\]
68: f3920f62 vqrdmlsh.s16 q0, q1, d2\[2\]
6c: f3920f6a vqrdmlsh.s16 q0, q1, d2\[3\]
70: f2a10f42 vqrdmlsh.s32 d0, d1, d2\[0\]
74: f2a10f62 vqrdmlsh.s32 d0, d1, d2\[1\]
78: f3a20f42 vqrdmlsh.s32 q0, q1, d2\[0\]
7c: f3a20f62 vqrdmlsh.s32 q0, q1, d2\[1\]
00000080 <.*>:
80: ff11 0b12 vqrdmlah.s16 d0, d1, d2
84: ff12 0b54 vqrdmlah.s16 q0, q1, q2
88: ff21 0b12 vqrdmlah.s32 d0, d1, d2
8c: ff22 0b54 vqrdmlah.s32 q0, q1, q2
90: ff11 0c12 vqrdmlsh.s16 d0, d1, d2
94: ff12 0c54 vqrdmlsh.s16 q0, q1, q2
98: ff21 0c12 vqrdmlsh.s32 d0, d1, d2
9c: ff22 0c54 vqrdmlsh.s32 q0, q1, q2
a0: ef91 0e42 vqrdmlah.s16 d0, d1, d2\[0\]
a4: ef91 0e4a vqrdmlah.s16 d0, d1, d2\[1\]
a8: ef91 0e62 vqrdmlah.s16 d0, d1, d2\[2\]
ac: ef91 0e6a vqrdmlah.s16 d0, d1, d2\[3\]
b0: ff92 0e42 vqrdmlah.s16 q0, q1, d2\[0\]
b4: ff92 0e4a vqrdmlah.s16 q0, q1, d2\[1\]
b8: ff92 0e62 vqrdmlah.s16 q0, q1, d2\[2\]
bc: ff92 0e6a vqrdmlah.s16 q0, q1, d2\[3\]
c0: efa1 0e42 vqrdmlah.s32 d0, d1, d2\[0\]
c4: efa1 0e62 vqrdmlah.s32 d0, d1, d2\[1\]
c8: ffa2 0e42 vqrdmlah.s32 q0, q1, d2\[0\]
cc: ffa2 0e62 vqrdmlah.s32 q0, q1, d2\[1\]
d0: ef91 0f42 vqrdmlsh.s16 d0, d1, d2\[0\]
d4: ef91 0f4a vqrdmlsh.s16 d0, d1, d2\[1\]
d8: ef91 0f62 vqrdmlsh.s16 d0, d1, d2\[2\]
dc: ef91 0f6a vqrdmlsh.s16 d0, d1, d2\[3\]
e0: ff92 0f42 vqrdmlsh.s16 q0, q1, d2\[0\]
e4: ff92 0f4a vqrdmlsh.s16 q0, q1, d2\[1\]
e8: ff92 0f62 vqrdmlsh.s16 q0, q1, d2\[2\]
ec: ff92 0f6a vqrdmlsh.s16 q0, q1, d2\[3\]
f0: efa1 0f42 vqrdmlsh.s32 d0, d1, d2\[0\]
f4: efa1 0f62 vqrdmlsh.s32 d0, d1, d2\[1\]
f8: ffa2 0f42 vqrdmlsh.s32 q0, q1, d2\[0\]
fc: ffa2 0f62 vqrdmlsh.s32 q0, q1, d2\[1\]

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@ -1,3 +1,8 @@
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.
2016-06-29 Trevor Saunders <tbsaunde+binutils@tbsaunde.org>
* opcode/sparc.h (enum sparc_opcode_arch_val): Move

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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)