On 11/11/16 18:22, Jiong Wang wrote:
This patch add command line support for ARMv8.3-A through new architecture:
-march=armv8.3-a
ARMv8.3-A implies all default features of ARMv8.2-A and meanwhile it includes
the new pointer authentication extension.
gcc/
2016-11-08 Jiong Wang<jiong.w...@arm.com>
* config/aarch64/aarch64-arches.def: New entry for "armv8.3-a".
* config/aarch64/aarch64.h (AARCH64_FL_PAUTH, AARCH64_FL_V8_3,
AARCH64_FL_FOR_ARCH8_3, AARCH64_ISA_PAUTH, AARCH64_ISA_V8_3,
TARGET_PAUTH, TARGET_ARMV8_3): New.
* doc/invoke.texi (AArch64 Options): Document "armv8.3-a".
Ping ~
As pointer authentication extension is defined to be mandatory extension on
ARMv8.3-A and is not optional, I adjusted the patch slightly.
This also let GCC treating pointer authentication extension in consistent way
with Binutils.
OK for trunk?
gcc/
2017-01-06 Jiong Wang <jiong.w...@arm.com>
* config/aarch64/aarch64-arches.def: New entry for "armv8.3-a".
* config/aarch64/aarch64.h (AARCH64_FL_V8_3, AARCH64_FL_FOR_ARCH8_3,
AARCH64_ISA_V8_3, TARGET_ARMV8_3): New.
* doc/invoke.texi (AArch64 Options): Document "armv8.3-a".
diff --git a/gcc/config/aarch64/aarch64-arches.def b/gcc/config/aarch64/aarch64-arches.def
index 830a7cf545532c050847a8c915d21bef12152388..ce6f73b3e5853b3d40e07545b9581298c768edca 100644
--- a/gcc/config/aarch64/aarch64-arches.def
+++ b/gcc/config/aarch64/aarch64-arches.def
@@ -33,5 +33,6 @@
AARCH64_ARCH("armv8-a", generic, 8A, 8, AARCH64_FL_FOR_ARCH8)
AARCH64_ARCH("armv8.1-a", generic, 8_1A, 8, AARCH64_FL_FOR_ARCH8_1)
AARCH64_ARCH("armv8.2-a", generic, 8_2A, 8, AARCH64_FL_FOR_ARCH8_2)
+AARCH64_ARCH("armv8.3-a", generic, 8_3A, 8, AARCH64_FL_FOR_ARCH8_3)
#undef AARCH64_ARCH
diff --git a/gcc/config/aarch64/aarch64.h b/gcc/config/aarch64/aarch64.h
index 584ff5c43afcd1a7918019b09165371bb88bfda1..51916c95a736ade697a823f15d483336651ac99a 100644
--- a/gcc/config/aarch64/aarch64.h
+++ b/gcc/config/aarch64/aarch64.h
@@ -138,6 +138,8 @@ extern unsigned aarch64_architecture_version;
/* ARMv8.2-A architecture extensions. */
#define AARCH64_FL_V8_2 (1 << 8) /* Has ARMv8.2-A features. */
#define AARCH64_FL_F16 (1 << 9) /* Has ARMv8.2-A FP16 extensions. */
+/* ARMv8.3-A architecture extensions. */
+#define AARCH64_FL_V8_3 (1 << 10) /* Has ARMv8.3-A features. */
/* Has FP and SIMD. */
#define AARCH64_FL_FPSIMD (AARCH64_FL_FP | AARCH64_FL_SIMD)
@@ -151,6 +153,8 @@ extern unsigned aarch64_architecture_version;
(AARCH64_FL_FOR_ARCH8 | AARCH64_FL_LSE | AARCH64_FL_CRC | AARCH64_FL_V8_1)
#define AARCH64_FL_FOR_ARCH8_2 \
(AARCH64_FL_FOR_ARCH8_1 | AARCH64_FL_V8_2)
+#define AARCH64_FL_FOR_ARCH8_3 \
+ (AARCH64_FL_FOR_ARCH8_2 | AARCH64_FL_V8_3)
/* Macros to test ISA flags. */
@@ -162,6 +166,7 @@ extern unsigned aarch64_architecture_version;
#define AARCH64_ISA_RDMA (aarch64_isa_flags & AARCH64_FL_V8_1)
#define AARCH64_ISA_V8_2 (aarch64_isa_flags & AARCH64_FL_V8_2)
#define AARCH64_ISA_F16 (aarch64_isa_flags & AARCH64_FL_F16)
+#define AARCH64_ISA_V8_3 (aarch64_isa_flags & AARCH64_FL_V8_3)
/* Crypto is an optional extension to AdvSIMD. */
#define TARGET_CRYPTO (TARGET_SIMD && AARCH64_ISA_CRYPTO)
@@ -176,6 +181,9 @@ extern unsigned aarch64_architecture_version;
#define TARGET_FP_F16INST (TARGET_FLOAT && AARCH64_ISA_F16)
#define TARGET_SIMD_F16INST (TARGET_SIMD && AARCH64_ISA_F16)
+/* ARMv8.3-A features. */
+#define TARGET_ARMV8_3 (AARCH64_ISA_V8_3)
+
/* Make sure this is always defined so we don't have to check for ifdefs
but rather use normal ifs. */
#ifndef TARGET_FIX_ERR_A53_835769_DEFAULT
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 8e2f46617b8e44ccf16941c31029ab5625322867..791718831d7089c44dfadb137f5e93caa9cd05f0 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -13874,7 +13874,10 @@ more feature modifiers. This option has the form
@option{-march=@var{arch}@r{@{}+@r{[}no@r{]}@var{feature}@r{@}*}}.
The permissible values for @var{arch} are @samp{armv8-a},
-@samp{armv8.1-a}, @samp{armv8.2-a} or @var{native}.
+@samp{armv8.1-a}, @samp{armv8.2-a}, @samp{armv8.3-a} or @var{native}.
+
+The value @samp{armv8.3-a} implies @samp{armv8.2-a} and enables compiler
+support for the ARMv8.3-A architecture extensions.
The value @samp{armv8.2-a} implies @samp{armv8.1-a} and enables compiler
support for the ARMv8.2-A architecture extensions.
