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* [PATCH 1/7][ARM] Add support for ARMv8.1.
@ 2015-11-26 15:58 Matthew Wahab
  2015-11-26 15:58 ` [PATCH 2/7][ARM] Multilib " Matthew Wahab
                   ` (7 more replies)
  0 siblings, 8 replies; 38+ messages in thread
From: Matthew Wahab @ 2015-11-26 15:58 UTC (permalink / raw)
  To: gcc-patches

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Hello,


ARMv8.1 includes an extension to ARM which adds two Adv.SIMD
instructions, vqrdmlah and vqrdmlsh. This patch set adds support for
ARMv8.1 and for the new instructions, enabling the architecture with
--march=armv8.1-a. The new instructions are enabled when both ARMv8.1
and a suitable fpu options are set, for instance with -march=armv8.1-a
-mfpu=neon-fp-armv8 -mfloat-abi=hard.

This patch set adds the command line options and internal feature
macros. Following patches
- enable multilib support for ARMv8.1,
- add patterns for the new instructions,
- add the ACLE feature macro for the ARMv8.1 extensions,
- extend target support in the testsuite to ARMv8.1,
- add the ACLE intrinsics for vqrmdl{as}h and
- add the ACLE intrinsics for vqrmdl{as}h_lane.

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.

Is this ok for trunk?
Matthew

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

	* config/arm/arm-arches.def: Add "armv8.1-a" and "armv8.1-a+crc".
	* config/arm/arm-protos.h (FL2_ARCH8_1): New.
	(FL2_FOR_ARCH8_1A): New.
	* config/arm/arm-tables.opt: Regenerate.
	* config/arm/arm.c (arm_arch8_1): New.
	(arm_option_override): Set arm_arch8_1.
	* config/arm/arm.h (TARGET_NEON_RDMA): New.
	(arm_arch8_1): Declare.
	* doc/invoke.texi (ARM Options, -march): Add "armv8.1-a" and
	"armv8.1-a+crc".
	(ARM Options, -mfpu): Fix a typo.

[-- Attachment #2: 0001-ARM-Add-ARMv8.1-architecture-flags-and-options.patch --]
[-- Type: text/x-patch, Size: 6273 bytes --]

From 3ee3a16839c1c316906e33f5384da05ee70dd831 Mon Sep 17 00:00:00 2001
From: Matthew Wahab <matthew.wahab@arm.com>
Date: Tue, 1 Sep 2015 11:31:25 +0100
Subject: [PATCH 1/7] [ARM] Add ARMv8.1 architecture flags and options.

Change-Id: I6bb0c7f020613a1a17e40bccc28b00c30d644c70
---
 gcc/config/arm/arm-arches.def |  5 +++++
 gcc/config/arm/arm-protos.h   |  3 +++
 gcc/config/arm/arm-tables.opt | 10 ++++++++--
 gcc/config/arm/arm.c          |  4 ++++
 gcc/config/arm/arm.h          |  6 ++++++
 gcc/doc/invoke.texi           |  6 +++---
 6 files changed, 29 insertions(+), 5 deletions(-)

diff --git a/gcc/config/arm/arm-arches.def b/gcc/config/arm/arm-arches.def
index ddf6c3c..6c83153 100644
--- a/gcc/config/arm/arm-arches.def
+++ b/gcc/config/arm/arm-arches.def
@@ -57,6 +57,11 @@ ARM_ARCH("armv7-m", cortexm3,	7M,	ARM_FSET_MAKE_CPU1 (FL_CO_PROC |	      FL_FOR_
 ARM_ARCH("armv7e-m", cortexm4,  7EM,	ARM_FSET_MAKE_CPU1 (FL_CO_PROC |	      FL_FOR_ARCH7EM))
 ARM_ARCH("armv8-a", cortexa53,  8A,	ARM_FSET_MAKE_CPU1 (FL_CO_PROC |             FL_FOR_ARCH8A))
 ARM_ARCH("armv8-a+crc",cortexa53, 8A,   ARM_FSET_MAKE_CPU1 (FL_CO_PROC | FL_CRC32  | FL_FOR_ARCH8A))
+ARM_ARCH ("armv8.1-a", cortexa53,  8A,
+	  ARM_FSET_MAKE (FL_CO_PROC | FL_FOR_ARCH8A,  FL2_FOR_ARCH8_1A))
+ARM_ARCH ("armv8.1-a+crc",cortexa53, 8A,
+	  ARM_FSET_MAKE (FL_CO_PROC | FL_CRC32 | FL_FOR_ARCH8A,
+			 FL2_FOR_ARCH8_1A))
 ARM_ARCH("iwmmxt",  iwmmxt,     5TE,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_STRONG | FL_FOR_ARCH5TE | FL_XSCALE | FL_IWMMXT))
 ARM_ARCH("iwmmxt2", iwmmxt2,    5TE,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_STRONG | FL_FOR_ARCH5TE | FL_XSCALE | FL_IWMMXT | FL_IWMMXT2))
 
diff --git a/gcc/config/arm/arm-protos.h b/gcc/config/arm/arm-protos.h
index e4b8fb3..c3eb6d3 100644
--- a/gcc/config/arm/arm-protos.h
+++ b/gcc/config/arm/arm-protos.h
@@ -388,6 +388,8 @@ extern bool arm_is_constant_pool_ref (rtx);
 #define FL_IWMMXT2    (1 << 30)       /* "Intel Wireless MMX2 technology".  */
 #define FL_ARCH6KZ    (1 << 31)       /* ARMv6KZ architecture.  */
 
+#define FL2_ARCH8_1   (1 << 0)	      /* Architecture 8.1.  */
+
 /* Flags that only effect tuning, not available instructions.  */
 #define FL_TUNE		(FL_WBUF | FL_VFPV2 | FL_STRONG | FL_LDSCHED \
 			 | FL_CO_PROC)
@@ -416,6 +418,7 @@ extern bool arm_is_constant_pool_ref (rtx);
 #define FL_FOR_ARCH7M	(FL_FOR_ARCH7 | FL_THUMB_DIV)
 #define FL_FOR_ARCH7EM  (FL_FOR_ARCH7M | FL_ARCH7EM)
 #define FL_FOR_ARCH8A	(FL_FOR_ARCH7VE | FL_ARCH8)
+#define FL2_FOR_ARCH8_1A	FL2_ARCH8_1
 
 /* There are too many feature bits to fit in a single word so the set of cpu and
    fpu capabilities is a structure.  A feature set is created and manipulated
diff --git a/gcc/config/arm/arm-tables.opt b/gcc/config/arm/arm-tables.opt
index 48aac41..db17f6e 100644
--- a/gcc/config/arm/arm-tables.opt
+++ b/gcc/config/arm/arm-tables.opt
@@ -416,10 +416,16 @@ EnumValue
 Enum(arm_arch) String(armv8-a+crc) Value(26)
 
 EnumValue
-Enum(arm_arch) String(iwmmxt) Value(27)
+Enum(arm_arch) String(armv8.1-a) Value(27)
 
 EnumValue
-Enum(arm_arch) String(iwmmxt2) Value(28)
+Enum(arm_arch) String(armv8.1-a+crc) Value(28)
+
+EnumValue
+Enum(arm_arch) String(iwmmxt) Value(29)
+
+EnumValue
+Enum(arm_arch) String(iwmmxt2) Value(30)
 
 Enum
 Name(arm_fpu) Type(int)
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index e0cdc20..8cbf364 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -817,6 +817,9 @@ int arm_arch7em = 0;
 /* Nonzero if instructions present in ARMv8 can be used.  */
 int arm_arch8 = 0;
 
+/* Nonzero if this chip supports the ARMv8.1 extensions.  */
+int arm_arch8_1 = 0;
+
 /* Nonzero if this chip can benefit from load scheduling.  */
 int arm_ld_sched = 0;
 
@@ -3109,6 +3112,7 @@ arm_option_override (void)
   arm_arch7 = ARM_FSET_HAS_CPU1 (insn_flags, FL_ARCH7);
   arm_arch7em = ARM_FSET_HAS_CPU1 (insn_flags, FL_ARCH7EM);
   arm_arch8 = ARM_FSET_HAS_CPU1 (insn_flags, FL_ARCH8);
+  arm_arch8_1 = ARM_FSET_HAS_CPU2 (insn_flags, FL2_ARCH8_1);
   arm_arch_thumb2 = ARM_FSET_HAS_CPU1 (insn_flags, FL_THUMB2);
   arm_arch_xscale = ARM_FSET_HAS_CPU1 (insn_flags, FL_XSCALE);
 
diff --git a/gcc/config/arm/arm.h b/gcc/config/arm/arm.h
index 6ed8ad3..e7c8898 100644
--- a/gcc/config/arm/arm.h
+++ b/gcc/config/arm/arm.h
@@ -217,6 +217,9 @@ extern void (*arm_lang_output_object_attributes_hook)(void);
   (TARGET_32BIT && TARGET_HARD_FLOAT && TARGET_VFP			\
    && ARM_FPU_FSET_HAS (TARGET_FPU_FEATURES, FPU_FL_NEON))
 
+/* FPU supports ARMv8.1 Adv.SIMD extensions.  */
+#define TARGET_NEON_RDMA (TARGET_NEON && arm_arch8_1)
+
 /* Q-bit is present.  */
 #define TARGET_ARM_QBIT \
   (TARGET_32BIT && arm_arch5e && (arm_arch_notm || arm_arch7))
@@ -436,6 +439,9 @@ extern int arm_arch7em;
 /* Nonzero if this chip supports the ARM Architecture 8 extensions.  */
 extern int arm_arch8;
 
+/* Nonzero if this chip supports the ARM Architecture 8.1 extensions.  */
+extern int arm_arch8_1;
+
 /* Nonzero if this chip can benefit from load scheduling.  */
 extern int arm_ld_sched;
 
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 53f1fe2..f8e8e5d 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -13531,8 +13531,8 @@ of the @option{-mcpu=} option.  Permissible names are: @samp{armv2},
 @samp{armv6}, @samp{armv6j},
 @samp{armv6t2}, @samp{armv6z}, @samp{armv6kz}, @samp{armv6-m},
 @samp{armv7}, @samp{armv7-a}, @samp{armv7-r}, @samp{armv7-m}, @samp{armv7e-m},
-@samp{armv7ve}, @samp{armv8-a}, @samp{armv8-a+crc},
-@samp{iwmmxt}, @samp{iwmmxt2}, @samp{ep9312}.
+@samp{armv7ve}, @samp{armv8-a}, @samp{armv8-a+crc}, @samp{armv8.1-a},
+@samp{armv8.1-a+crc}, @samp{iwmmxt}, @samp{iwmmxt2}, @samp{ep9312}.
 
 @option{-march=armv7ve} is the armv7-a architecture with virtualization
 extensions.
@@ -13635,7 +13635,7 @@ available on the target.  Permissible names are: @samp{vfp}, @samp{vfpv3},
 @samp{vfpv3xd-fp16}, @samp{neon}, @samp{neon-fp16}, @samp{vfpv4},
 @samp{vfpv4-d16}, @samp{fpv4-sp-d16}, @samp{neon-vfpv4},
 @samp{fpv5-d16}, @samp{fpv5-sp-d16},
-@samp{fp-armv8}, @samp{neon-fp-armv8}, and @samp{crypto-neon-fp-armv8}.
+@samp{fp-armv8}, @samp{neon-fp-armv8} and @samp{crypto-neon-fp-armv8}.
 
 If @option{-msoft-float} is specified this specifies the format of
 floating-point values.
-- 
2.1.4


^ permalink raw reply	[flat|nested] 38+ messages in thread
end of thread, other threads:[~2015-12-16 11:28 UTC | newest]

Thread overview: 38+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-11-26 15:58 [PATCH 1/7][ARM] Add support for ARMv8.1 Matthew Wahab
2015-11-26 15:58 ` [PATCH 2/7][ARM] Multilib " Matthew Wahab
2015-12-07 16:05   ` Matthew Wahab
2015-12-10 10:43     ` Ramana Radhakrishnan
2015-11-26 16:01 ` [PATCH 3/7][ARM] Add patterns for new instructions Matthew Wahab
2015-12-07 16:07   ` Matthew Wahab
2015-12-10 10:44     ` Ramana Radhakrishnan
2015-11-26 16:02 ` [PATCH 4/7][ARM] Add ACLE feature macro for ARMv8.1 instructions Matthew Wahab
2015-12-07 16:07   ` Matthew Wahab
2015-12-08  7:45     ` Christian Bruel
2015-12-10 10:45       ` Ramana Radhakrishnan
2015-12-15 16:03         ` Matthew Wahab
2015-12-15 21:08           ` Ramana Radhakrishnan
2015-11-26 16:03 ` [PATCH 5/7][Testsuite] Support ARMv8.1 ARM tests Matthew Wahab
2015-11-26 16:10   ` Matthew Wahab
2015-11-27 13:45     ` Christophe Lyon
2015-11-27 17:11       ` Matthew Wahab
2015-11-27 17:42       ` Matthew Wahab
2015-12-07 16:10         ` Matthew Wahab
2015-12-09 15:02           ` Christophe Lyon
2015-12-10 10:49           ` Ramana Radhakrishnan
2015-12-15 16:07             ` Matthew Wahab
2015-12-15 21:05               ` Ramana Radhakrishnan
2015-11-26 16:05 ` [PATCH 6/7][ARM] Add ACLE intrinsics vqrdmlah and vqrdmlsh Matthew Wahab
2015-12-07 16:12   ` Matthew Wahab
2015-12-10 10:51     ` Ramana Radhakrishnan
2015-11-26 16:05 ` [PATCH 7/7][ARM] Add ACLE intrinsics vqrdmlah_lane and vqrdmlsh_lane Matthew Wahab
2015-11-26 16:10   ` Matthew Wahab
2015-12-07 16:13     ` Matthew Wahab
2015-12-10 10:51   ` Ramana Radhakrishnan
2015-11-27 14:09 ` [PATCH 1/7][ARM] Add support for ARMv8.1 Christophe Lyon
2015-11-27 17:11   ` Matthew Wahab
2015-11-27 17:56     ` Christophe Lyon
2015-12-07 16:04 ` Matthew Wahab
2015-12-10 10:43   ` Ramana Radhakrishnan
2015-12-10 11:02     ` Ramana Radhakrishnan
2015-12-16 11:20       ` Matthew Wahab
2015-12-16 11:28         ` Ramana Radhakrishnan

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