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[2/7,ARM] Multilib support for ARMv8.1.

Message ID 56572C13.4010909@foss.arm.com
State New
Headers show

Commit Message

Matthew Wahab Nov. 26, 2015, 3:58 p.m. UTC 
This patch sets up multilib support for ARMv8.1, treating it as a
synonym for ARMv8. Since ARMv8.1 integer, FP or SIMD
instructions are only generated for the new, instruction-specific
instrinsics, mapping to ARMv8 rather than adding a new multilib variant
is sufficient.

Tested the series for arm-none-eabi with cross-compiled check-gcc on an
ARMv8.1 emulator. Also tested arm-none-linux-gnueabihf with native
bootstrap and make check.

Ok for trunk?
Matthew

gcc/
2015-11-26  Matthew Wahab  <matthew.wahab@arm.com>

	* config/arm/t-aprofile: Make "armv8.1-a" and "armv8.1-a+crc"
	matches for "armv8-a".
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Patch

From 9cd389bf72cff391423e17423f4624904aff5474 Mon Sep 17 00:00:00 2001
From: Matthew Wahab <matthew.wahab@arm.com>
Date: Fri, 23 Oct 2015 09:37:12 +0100
Subject: [PATCH 2/7] [ARM] Multilib support for ARMv8.1

Change-Id: I65ee77768e22452ac15452cf6d4fdec3079ef852
---
 gcc/config/arm/t-aprofile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gcc/config/arm/t-aprofile b/gcc/config/arm/t-aprofile
index cf34161..b23f1bc 100644
--- a/gcc/config/arm/t-aprofile
+++ b/gcc/config/arm/t-aprofile
@@ -98,6 +98,8 @@  MULTILIB_MATCHES       += march?armv8-a=mcpu?xgene1
 
 # Arch Matches
 MULTILIB_MATCHES       += march?armv8-a=march?armv8-a+crc
+MULTILIB_MATCHES       += march?armv8-a=march?armv8.1-a
+MULTILIB_MATCHES       += march?armv8-a=march?armv8.1-a+crc
 
 # FPU matches
 MULTILIB_MATCHES       += mfpu?vfpv3-d16=mfpu?vfpv3
-- 
2.1.4