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[ARM] Add support for ARMv8.1 command line option.
- From: Matthew Wahab <matthew dot wahab at arm dot com>
- To: "binutils at sourceware dot org" <binutils at sourceware dot org>
- Date: Thu, 21 May 2015 11:05:57 +0100
- Subject: [ARM] Add support for ARMv8.1 command line option.
- Authentication-results: sourceware.org; auth=none
ARMv8.1 is a set of optional architectural extensions to ARMv8. Support for the
individual extensions, added by other patches, is enabled by adding the
extension name to the "armv8-a" architecture name. This patch adds support for
using "armv8.1-a" as an architecture name in its own right, making it the same
as "armv8-a" with all ARMv8.1 extensions enabled.
This patch depends on the ARMv8.1 patches submitted earlier:
- PAN extension: https://sourceware.org/ml/binutils/2015-05/msg00209.html
- Adv.SIMD extensions: https://sourceware.org/ml/binutils/2015-05/msg00211.html
Tested with check-binutils and check-gas for arm-none-linux-gnueabihf.
Ok for trunk?
Matthew
gas/
2015-05-21 Matthew Wahab <matthew.wahab@arm.com>
* config/tc-arm.c (arm_archs): Add "armv8.1-a".
* doc/c-arm.texi (ARM Options, -march): Add "armv8.1-a".
include/opcode
2015-05-21 Matthew Wahab <matthew.wahab@arm.com>
* arm.h (FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_1): New.
(ARM_ARCH_V8_1A): New.
(ARM_ARCH_V8_1A_FP): New.
(ARM_ARCH_V8_1A_SIMD): New.
(ARM_ARCH_V8_1A_CRYPTOV1): New.
(ARM_FEATURE_CORE): New.
diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c
index c69a942..b57f85c 100644
--- a/gas/config/tc-arm.c
+++ b/gas/config/tc-arm.c
@@ -24650,6 +24650,7 @@ static const struct arm_arch_option_table arm_archs[] =
ARM_ARCH_OPT ("armv7-m", ARM_ARCH_V7M, FPU_ARCH_VFP),
ARM_ARCH_OPT ("armv7e-m", ARM_ARCH_V7EM, FPU_ARCH_VFP),
ARM_ARCH_OPT ("armv8-a", ARM_ARCH_V8A, FPU_ARCH_VFP),
+ ARM_ARCH_OPT ("armv8.1-a", ARM_ARCH_V8_1A, FPU_ARCH_VFP),
ARM_ARCH_OPT ("xscale", ARM_ARCH_XSCALE, FPU_ARCH_VFP),
ARM_ARCH_OPT ("iwmmxt", ARM_ARCH_IWMMXT, FPU_ARCH_VFP),
ARM_ARCH_OPT ("iwmmxt2", ARM_ARCH_IWMMXT2,FPU_ARCH_VFP),
diff --git a/gas/doc/c-arm.texi b/gas/doc/c-arm.texi
index acb897f..a1022eb 100644
--- a/gas/doc/c-arm.texi
+++ b/gas/doc/c-arm.texi
@@ -220,6 +220,7 @@ names are recognized:
@code{armv7-m},
@code{armv7e-m},
@code{armv8-a},
+@code{armv8.1-a},
@code{iwmmxt}
@code{iwmmxt2}
and
diff --git a/include/opcode/arm.h b/include/opcode/arm.h
index d88ff27..a5aa3a1 100644
--- a/include/opcode/arm.h
+++ b/include/opcode/arm.h
@@ -208,6 +208,9 @@
ARM_FEATURE_COPROC (FPU_NEON_ARMV8 \
| FPU_VFP_ARMV8 \
| FPU_NEON_EXT_RDMA)
+#define FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_1 \
+ ARM_FEATURE_COPROC (FPU_CRYPTO_ARMV8 | FPU_NEON_ARMV8 | FPU_VFP_ARMV8 \
+ | FPU_NEON_EXT_RDMA)
#define FPU_ARCH_ENDIAN_PURE ARM_FEATURE_COPROC (FPU_ENDIAN_PURE)
@@ -247,6 +250,7 @@
#define ARM_ARCH_V7M ARM_FEATURE_CORE_LOW (ARM_AEXT_V7M)
#define ARM_ARCH_V7EM ARM_FEATURE_CORE_LOW (ARM_AEXT_V7EM)
#define ARM_ARCH_V8A ARM_FEATURE_CORE_LOW (ARM_AEXT_V8A)
+#define ARM_ARCH_V8_1A ARM_FEATURE_CORE (ARM_AEXT_V8A, ARM_EXT2_PAN)
/* Some useful combinations: */
#define ARM_ARCH_NONE ARM_FEATURE_LOW (0, 0)
@@ -275,6 +279,17 @@
#define ARM_ARCH_V8A_CRYPTOV1 ARM_FEATURE_LOW (ARM_AEXT_V8A, \
FPU_ARCH_CRYPTO_NEON_VFP_ARMV8)
+/* v8.1-a+fp. */
+#define ARM_ARCH_V8_1A_FP ARM_FEATURE (ARM_AEXT_V8A, ARM_EXT2_PAN, \
+ FPU_ARCH_VFP_ARMV8)
+/* v8.1-a+simd (implies fp). */
+#define ARM_ARCH_V8_1A_SIMD ARM_FEATURE (ARM_AEXT_V8A, ARM_EXT2_PAN, \
+ FPU_ARCH_NEON_VFP_ARMV8_1)
+/* v8.1-a+crypto (implies simd+fp). */
+#define ARM_ARCH_V8_1A_CRYPTOV1 ARM_FEATURE (ARM_AEXT_V8A, ARM_EXT2_PAN, \
+ FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_1)
+
+
/* There are too many feature bits to fit in a single word, so use a
structure. For simplicity we put all core features in array CORE
and everything else in the other. All the bits in element core[0]
@@ -328,6 +343,7 @@ typedef struct
((T1).core[0] == (T2).core[0] && (T1).core[1] == (T2).core[1])
#define ARM_FEATURE_LOW(core, coproc) {{(core), 0}, (coproc)}
+#define ARM_FEATURE_CORE(core1, core2) {{(core1), (core2)}, 0}
#define ARM_FEATURE_CORE_LOW(core) {{(core), 0}, 0}
#define ARM_FEATURE_CORE_HIGH(core) {{0, (core)}, 0}
#define ARM_FEATURE_COPROC(coproc) {{0, 0}, (coproc)}