[gcc(refs/vendors/redhat/heads/gcc-10-branch)] arm: ACLE I8MM multiply-accumulate
Jakub Jelinek
jakub@gcc.gnu.org
Wed Mar 11 22:45:24 GMT 2020
https://gcc.gnu.org/g:436016f45694c7236e2e9f9db2adb0b4d9bf6b94
commit 436016f45694c7236e2e9f9db2adb0b4d9bf6b94
Author: Dennis Zhang <dennis.zhang@arm.com>
Date: Fri Feb 21 15:36:13 2020 +0000
arm: ACLE I8MM multiply-accumulate
This patch adds intrinsics for matrix multiply-accumulate instructions
including vmmlaq_s32, vmmlaq_u32, and vusmmlaq_s32.
gcc/ChangeLog:
2020-02-21 Dennis Zhang <dennis.zhang@arm.com>
* config/arm/arm_neon.h (vmmlaq_s32, vmmlaq_u32, vusmmlaq_s32): New.
* config/arm/arm_neon_builtins.def (smmla, ummla, usmmla): New.
* config/arm/iterators.md (MATMUL): New iterator.
(sup): Add UNSPEC_MATMUL_S, UNSPEC_MATMUL_U, and UNSPEC_MATMUL_US.
(mmla_sfx): New attribute.
* config/arm/neon.md (neon_<sup>mmlav16qi): New.
* config/arm/unspecs.md (UNSPEC_MATMUL_S, UNSPEC_MATMUL_U): New.
(UNSPEC_MATMUL_US): New.
gcc/testsuite/ChangeLog:
2020-02-21 Dennis Zhang <dennis.zhang@arm.com>
* gcc.target/arm/simd/vmmla_1.c: New test.
Diff:
---
gcc/ChangeLog | 11 +++++++++++
gcc/config/arm/arm_neon.h | 28 ++++++++++++++++++++++++++++
gcc/config/arm/arm_neon_builtins.def | 4 ++++
gcc/config/arm/iterators.md | 6 ++++++
gcc/config/arm/neon.md | 11 +++++++++++
gcc/config/arm/unspecs.md | 3 +++
gcc/testsuite/ChangeLog | 4 ++++
gcc/testsuite/gcc.target/arm/simd/vmmla_1.c | 28 ++++++++++++++++++++++++++++
8 files changed, 95 insertions(+)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3d4d799ed5d..833fa6a8383 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,14 @@
+2020-02-21 Dennis Zhang <dennis.zhang@arm.com>
+
+ * config/arm/arm_neon.h (vmmlaq_s32, vmmlaq_u32, vusmmlaq_s32): New.
+ * config/arm/arm_neon_builtins.def (smmla, ummla, usmmla): New.
+ * config/arm/iterators.md (MATMUL): New iterator.
+ (sup): Add UNSPEC_MATMUL_S, UNSPEC_MATMUL_U, and UNSPEC_MATMUL_US.
+ (mmla_sfx): New attribute.
+ * config/arm/neon.md (neon_<sup>mmlav16qi): New.
+ * config/arm/unspecs.md (UNSPEC_MATMUL_S, UNSPEC_MATMUL_U): New.
+ (UNSPEC_MATMUL_US): New.
+
2020-02-21 Mihail-Calin Ionescu <mihail.ionescu@arm.com>
* config/arm/arm.md: Prevent scalar shifts from being used when big
diff --git a/gcc/config/arm/arm_neon.h b/gcc/config/arm/arm_neon.h
index 81f550988f7..e81681aa415 100644
--- a/gcc/config/arm/arm_neon.h
+++ b/gcc/config/arm/arm_neon.h
@@ -18791,6 +18791,34 @@ vsudotq_lane_s32 (int32x4_t __r, int8x16_t __a,
#pragma GCC pop_options
#endif
+/* AdvSIMD 8-bit Integer Matrix Multiply (I8MM) intrinsics. */
+
+#pragma GCC push_options
+#pragma GCC target ("arch=armv8.2-a+i8mm")
+
+__extension__ extern __inline int32x4_t
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
+vmmlaq_s32 (int32x4_t __r, int8x16_t __a, int8x16_t __b)
+{
+ return __builtin_neon_smmlav16qi (__r, __a, __b);
+}
+
+__extension__ extern __inline uint32x4_t
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
+vmmlaq_u32 (uint32x4_t __r, uint8x16_t __a, uint8x16_t __b)
+{
+ return __builtin_neon_ummlav16qi_uuuu (__r, __a, __b);
+}
+
+__extension__ extern __inline int32x4_t
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
+vusmmlaq_s32 (int32x4_t __r, uint8x16_t __a, int8x16_t __b)
+{
+ return __builtin_neon_usmmlav16qi_ssus (__r, __a, __b);
+}
+
+#pragma GCC pop_options
+
#ifdef __cplusplus
}
#endif
diff --git a/gcc/config/arm/arm_neon_builtins.def b/gcc/config/arm/arm_neon_builtins.def
index b4537ff5de9..f4a97fd764c 100644
--- a/gcc/config/arm/arm_neon_builtins.def
+++ b/gcc/config/arm/arm_neon_builtins.def
@@ -377,3 +377,7 @@ VAR2 (MAC_LANE_PAIR, vcmlaq_lane0, v4sf, v8hf)
VAR2 (MAC_LANE_PAIR, vcmlaq_lane90, v4sf, v8hf)
VAR2 (MAC_LANE_PAIR, vcmlaq_lane180, v4sf, v8hf)
VAR2 (MAC_LANE_PAIR, vcmlaq_lane270, v4sf, v8hf)
+
+VAR1 (TERNOP, smmla, v16qi)
+VAR1 (UTERNOP, ummla, v16qi)
+VAR1 (USTERNOP, usmmla, v16qi)
diff --git a/gcc/config/arm/iterators.md b/gcc/config/arm/iterators.md
index f8a76fb59cb..136c45274ae 100644
--- a/gcc/config/arm/iterators.md
+++ b/gcc/config/arm/iterators.md
@@ -487,6 +487,8 @@
(define_int_iterator VCADD [UNSPEC_VCADD90 UNSPEC_VCADD270])
(define_int_iterator VCMLA [UNSPEC_VCMLA UNSPEC_VCMLA90 UNSPEC_VCMLA180 UNSPEC_VCMLA270])
+(define_int_iterator MATMUL [UNSPEC_MATMUL_S UNSPEC_MATMUL_U UNSPEC_MATMUL_US])
+
;;----------------------------------------------------------------------------
;; Mode attributes
;;----------------------------------------------------------------------------
@@ -942,6 +944,7 @@
(UNSPEC_DOT_S "s") (UNSPEC_DOT_U "u")
(UNSPEC_DOT_US "us") (UNSPEC_DOT_SU "su")
(UNSPEC_SSAT16 "s") (UNSPEC_USAT16 "u")
+ (UNSPEC_MATMUL_S "s") (UNSPEC_MATMUL_U "u") (UNSPEC_MATMUL_US "us")
])
(define_int_attr vfml_half
@@ -1110,6 +1113,9 @@
(UNSPEC_SMUADX "smuadx") (UNSPEC_SSAT16 "ssat16")
(UNSPEC_USAT16 "usat16")])
+(define_int_attr mmla_sfx [(UNSPEC_MATMUL_S "s8") (UNSPEC_MATMUL_U "u8")
+ (UNSPEC_MATMUL_US "s8")])
+
;; Both kinds of return insn.
(define_code_iterator RETURNS [return simple_return])
(define_code_attr return_str [(return "") (simple_return "simple_")])
diff --git a/gcc/config/arm/neon.md b/gcc/config/arm/neon.md
index 5d085dc6f61..039cd90c3da 100644
--- a/gcc/config/arm/neon.md
+++ b/gcc/config/arm/neon.md
@@ -6585,3 +6585,14 @@ if (BYTES_BIG_ENDIAN)
"vabd.<V_if_elem> %<V_reg>0, %<V_reg>1, %<V_reg>2"
[(set_attr "type" "neon_fp_abd_s<q>")]
)
+
+(define_insn "neon_<sup>mmlav16qi"
+ [(set (match_operand:V4SI 0 "register_operand" "=w")
+ (plus:V4SI
+ (unspec:V4SI [(match_operand:V16QI 2 "register_operand" "w")
+ (match_operand:V16QI 3 "register_operand" "w")] MATMUL)
+ (match_operand:V4SI 1 "register_operand" "0")))]
+ "TARGET_I8MM"
+ "v<sup>mmla.<mmla_sfx>\t%q0, %q2, %q3"
+ [(set_attr "type" "neon_mla_s_q")]
+)
diff --git a/gcc/config/arm/unspecs.md b/gcc/config/arm/unspecs.md
index 2dd62467fe6..c8f3f95c7f3 100644
--- a/gcc/config/arm/unspecs.md
+++ b/gcc/config/arm/unspecs.md
@@ -503,4 +503,7 @@
UNSPEC_VCMLA90
UNSPEC_VCMLA180
UNSPEC_VCMLA270
+ UNSPEC_MATMUL_S
+ UNSPEC_MATMUL_U
+ UNSPEC_MATMUL_US
])
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 01da6fb33ce..b608a1aa83b 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2020-02-21 Dennis Zhang <dennis.zhang@arm.com>
+
+ * gcc.target/arm/simd/vmmla_1.c: New test.
+
2020-02-21 Mihail-Calin Ionescu <mihail.ionescu@arm.com>
* gcc.target/arm/armv8_1m-shift-imm-1.c: Add MVE target checks.
diff --git a/gcc/testsuite/gcc.target/arm/simd/vmmla_1.c b/gcc/testsuite/gcc.target/arm/simd/vmmla_1.c
new file mode 100644
index 00000000000..b766a9141ce
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/simd/vmmla_1.c
@@ -0,0 +1,28 @@
+/* { dg-do assemble } */
+/* { dg-require-effective-target arm_v8_2a_i8mm_ok } */
+/* { dg-options "-save-temps -O2" } */
+/* { dg-additional-options "-march=armv8.2-a+i8mm" } */
+
+#include "arm_neon.h"
+
+int32x4_t
+test_vmmlaq_s32 (int32x4_t r, int8x16_t a, int8x16_t b)
+{
+ return vmmlaq_s32 (r, a, b);
+}
+
+uint32x4_t
+test_vmmlaq_u32 (uint32x4_t r, uint8x16_t a, uint8x16_t b)
+{
+ return vmmlaq_u32 (r, a, b);
+}
+
+int32x4_t
+test_vusmmlaq_s32 (int32x4_t r, uint8x16_t a, int8x16_t b)
+{
+ return vusmmlaq_s32 (r, a, b);
+}
+
+/* { dg-final { scan-assembler-times {\tvsmmla.s8\tq[0-9]+, q[0-9]+, q[0-9]+} 1 } } */
+/* { dg-final { scan-assembler-times {\tvummla.u8\tq[0-9]+, q[0-9]+, q[0-9]+} 1 } } */
+/* { dg-final { scan-assembler-times {\tvusmmla.s8\tq[0-9]+, q[0-9]+, q[0-9]+} 1 } } */
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