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* [gcc r14-1917] Refined 256/512-bit vpacksswb/vpackssdw patterns.
@ 2023-06-19 1:34 hongtao Liu
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From: hongtao Liu @ 2023-06-19 1:34 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:f8e02702726d4514b8ff9f5481c9c1f5d34e1787
commit r14-1917-gf8e02702726d4514b8ff9f5481c9c1f5d34e1787
Author: liuhongt <hongtao.liu@intel.com>
Date: Thu Jun 15 16:46:14 2023 +0800
Refined 256/512-bit vpacksswb/vpackssdw patterns.
The packing in vpacksswb/vpackssdw is not a simple concat, it's an
interweave from src1 and src2 for every 128 bit(or 64-bit for the
ss_truncate result).
.i.e.
dst[192-255] = ss_truncate (src2[128-255])
dst[128-191] = ss_truncate (src1[128-255])
dst[64-127] = ss_truncate (src2[0-127])
dst[0-63] = ss_truncate (src1[0-127]
The patch refined those patterns with an extra vec_select for the
interweave.
gcc/ChangeLog:
PR target/110235
* config/i386/sse.md (<sse2_avx2>_packsswb<mask_name>):
Substitute with ..
(sse2_packsswb<mask_name>): .. this, ..
(avx2_packsswb<mask_name>): .. this and ..
(avx512bw_packsswb<mask_name>): .. this.
(<sse2_avx2>_packssdw<mask_name>): Substitute with ..
(sse2_packssdw<mask_name>): .. this, ..
(avx2_packssdw<mask_name>): .. this and ..
(avx512bw_packssdw<mask_name>): .. this.
gcc/testsuite/ChangeLog:
* gcc.target/i386/avx512bw-vpackssdw-3.c: New test.
* gcc.target/i386/avx512bw-vpacksswb-3.c: New test.
Diff:
---
gcc/config/i386/sse.md | 165 ++++++++++++++++++---
.../gcc.target/i386/avx512bw-vpackssdw-3.c | 55 +++++++
.../gcc.target/i386/avx512bw-vpacksswb-3.c | 50 +++++++
3 files changed, 252 insertions(+), 18 deletions(-)
diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md
index 35b46a54130..87570357db6 100644
--- a/gcc/config/i386/sse.md
+++ b/gcc/config/i386/sse.md
@@ -17762,14 +17762,14 @@
DONE;
})
-(define_insn "<sse2_avx2>_packsswb<mask_name>"
- [(set (match_operand:VI1_AVX512 0 "register_operand" "=x,<v_Yw>")
- (vec_concat:VI1_AVX512
- (ss_truncate:<ssehalfvecmode>
- (match_operand:<sseunpackmode> 1 "register_operand" "0,<v_Yw>"))
- (ss_truncate:<ssehalfvecmode>
- (match_operand:<sseunpackmode> 2 "vector_operand" "xBm,<v_Yw>m"))))]
- "TARGET_SSE2 && <mask_mode512bit_condition> && <mask_avx512bw_condition>"
+(define_insn "sse2_packsswb<mask_name>"
+ [(set (match_operand:V16QI 0 "register_operand" "=x,Yw")
+ (vec_concat:V16QI
+ (ss_truncate:V8QI
+ (match_operand:V8HI 1 "register_operand" "0,Yw"))
+ (ss_truncate:V8QI
+ (match_operand:V8HI 2 "vector_operand" "xBm,Ywm"))))]
+ "TARGET_SSE2 && <mask_avx512vl_condition> && <mask_avx512bw_condition>"
"@
packsswb\t{%2, %0|%0, %2}
vpacksswb\t{%2, %1, %0<mask_operand3>|%0<mask_operand3>, %1, %2}"
@@ -17777,16 +17777,93 @@
(set_attr "type" "sselog")
(set_attr "prefix_data16" "1,*")
(set_attr "prefix" "orig,<mask_prefix>")
- (set_attr "mode" "<sseinsnmode>")])
+ (set_attr "mode" "TI")])
-(define_insn "<sse2_avx2>_packssdw<mask_name>"
- [(set (match_operand:VI2_AVX2 0 "register_operand" "=x,<v_Yw>")
- (vec_concat:VI2_AVX2
- (ss_truncate:<ssehalfvecmode>
- (match_operand:<sseunpackmode> 1 "register_operand" "0,<v_Yw>"))
- (ss_truncate:<ssehalfvecmode>
- (match_operand:<sseunpackmode> 2 "vector_operand" "xBm,<v_Yw>m"))))]
- "TARGET_SSE2 && <mask_mode512bit_condition> && <mask_avx512bw_condition>"
+(define_insn "avx2_packsswb<mask_name>"
+ [(set (match_operand:V32QI 0 "register_operand" "=Yw")
+ (vec_select:V32QI
+ (vec_concat:V32QI
+ (ss_truncate:V16QI
+ (match_operand:V16HI 1 "register_operand" "Yw"))
+ (ss_truncate:V16QI
+ (match_operand:V16HI 2 "vector_operand" "Ywm")))
+ (parallel [(const_int 0) (const_int 1)
+ (const_int 2) (const_int 3)
+ (const_int 4) (const_int 5)
+ (const_int 6) (const_int 7)
+ (const_int 16) (const_int 17)
+ (const_int 18) (const_int 19)
+ (const_int 20) (const_int 21)
+ (const_int 22) (const_int 23)
+ (const_int 8) (const_int 9)
+ (const_int 10) (const_int 11)
+ (const_int 12) (const_int 13)
+ (const_int 14) (const_int 15)
+ (const_int 24) (const_int 25)
+ (const_int 26) (const_int 27)
+ (const_int 28) (const_int 29)
+ (const_int 30) (const_int 31)])))]
+ "TARGET_AVX2 && <mask_avx512vl_condition> && <mask_avx512bw_condition>"
+ "vpacksswb\t{%2, %1, %0<mask_operand3>|%0<mask_operand3>, %1, %2}"
+ [(set_attr "type" "sselog")
+ (set_attr "prefix" "<mask_prefix>")
+ (set_attr "mode" "OI")])
+
+(define_insn "avx512bw_packsswb<mask_name>"
+ [(set (match_operand:V64QI 0 "register_operand" "=v")
+ (vec_select:V64QI
+ (vec_concat:V64QI
+ (ss_truncate:V32QI
+ (match_operand:V32HI 1 "register_operand" "v"))
+ (ss_truncate:V32QI
+ (match_operand:V32HI 2 "vector_operand" "vm")))
+ (parallel [(const_int 0) (const_int 1)
+ (const_int 2) (const_int 3)
+ (const_int 4) (const_int 5)
+ (const_int 6) (const_int 7)
+ (const_int 32) (const_int 33)
+ (const_int 34) (const_int 35)
+ (const_int 36) (const_int 37)
+ (const_int 38) (const_int 39)
+ (const_int 8) (const_int 9)
+ (const_int 10) (const_int 11)
+ (const_int 12) (const_int 13)
+ (const_int 14) (const_int 15)
+ (const_int 40) (const_int 41)
+ (const_int 42) (const_int 43)
+ (const_int 44) (const_int 45)
+ (const_int 46) (const_int 47)
+ (const_int 16) (const_int 17)
+ (const_int 18) (const_int 19)
+ (const_int 20) (const_int 21)
+ (const_int 22) (const_int 23)
+ (const_int 48) (const_int 49)
+ (const_int 50) (const_int 51)
+ (const_int 52) (const_int 53)
+ (const_int 54) (const_int 55)
+ (const_int 24) (const_int 25)
+ (const_int 26) (const_int 27)
+ (const_int 28) (const_int 29)
+ (const_int 30) (const_int 31)
+ (const_int 56) (const_int 57)
+ (const_int 58) (const_int 59)
+ (const_int 60) (const_int 61)
+ (const_int 62) (const_int 63)])))]
+
+ "TARGET_AVX512BW"
+ "vpacksswb\t{%2, %1, %0<mask_operand3>|%0<mask_operand3>, %1, %2}"
+ [(set_attr "type" "sselog")
+ (set_attr "prefix" "<mask_prefix>")
+ (set_attr "mode" "XI")])
+
+(define_insn "sse2_packssdw<mask_name>"
+ [(set (match_operand:V8HI 0 "register_operand" "=x,Yw")
+ (vec_concat:V8HI
+ (ss_truncate:V4HI
+ (match_operand:V4SI 1 "register_operand" "0,Yw"))
+ (ss_truncate:V4HI
+ (match_operand:V4SI 2 "vector_operand" "xBm,Ywm"))))]
+ "TARGET_SSE2 && <mask_avx512vl_condition> && <mask_avx512bw_condition>"
"@
packssdw\t{%2, %0|%0, %2}
vpackssdw\t{%2, %1, %0<mask_operand3>|%0<mask_operand3>, %1, %2}"
@@ -17794,7 +17871,59 @@
(set_attr "type" "sselog")
(set_attr "prefix_data16" "1,*")
(set_attr "prefix" "orig,<mask_prefix>")
- (set_attr "mode" "<sseinsnmode>")])
+ (set_attr "mode" "TI")])
+
+(define_insn "avx2_packssdw<mask_name>"
+ [(set (match_operand:V16HI 0 "register_operand" "=Yw")
+ (vec_select:V16HI
+ (vec_concat:V16HI
+ (ss_truncate:V8HI
+ (match_operand:V8SI 1 "register_operand" "Yw"))
+ (ss_truncate:V8HI
+ (match_operand:V8SI 2 "vector_operand" "Ywm")))
+ (parallel [(const_int 0) (const_int 1)
+ (const_int 2) (const_int 3)
+ (const_int 8) (const_int 9)
+ (const_int 10) (const_int 11)
+ (const_int 4) (const_int 5)
+ (const_int 6) (const_int 7)
+ (const_int 12) (const_int 13)
+ (const_int 14) (const_int 15)])))]
+ "TARGET_AVX2 && <mask_avx512vl_condition> && <mask_avx512bw_condition>"
+ "vpackssdw\t{%2, %1, %0<mask_operand3>|%0<mask_operand3>, %1, %2}"
+ [(set_attr "type" "sselog")
+ (set_attr "prefix" "<mask_prefix>")
+ (set_attr "mode" "OI")])
+
+(define_insn "avx512bw_packssdw<mask_name>"
+ [(set (match_operand:V32HI 0 "register_operand" "=v")
+ (vec_select:V32HI
+ (vec_concat:V32HI
+ (ss_truncate:V16HI
+ (match_operand:V16SI 1 "register_operand" "v"))
+ (ss_truncate:V16HI
+ (match_operand:V16SI 2 "vector_operand" "vm")))
+ (parallel [(const_int 0) (const_int 1)
+ (const_int 2) (const_int 3)
+ (const_int 16) (const_int 17)
+ (const_int 18) (const_int 19)
+ (const_int 4) (const_int 5)
+ (const_int 6) (const_int 7)
+ (const_int 20) (const_int 21)
+ (const_int 22) (const_int 23)
+ (const_int 8) (const_int 9)
+ (const_int 10) (const_int 11)
+ (const_int 24) (const_int 25)
+ (const_int 26) (const_int 27)
+ (const_int 12) (const_int 13)
+ (const_int 14) (const_int 15)
+ (const_int 28) (const_int 29)
+ (const_int 30) (const_int 31)])))]
+ "TARGET_AVX512BW"
+ "vpackssdw\t{%2, %1, %0<mask_operand3>|%0<mask_operand3>, %1, %2}"
+ [(set_attr "type" "sselog")
+ (set_attr "prefix" "<mask_prefix>")
+ (set_attr "mode" "XI")])
;; This instruction does unsigned saturation of signed source
;; and is different from generic us_truncate RTX.
diff --git a/gcc/testsuite/gcc.target/i386/avx512bw-vpackssdw-3.c b/gcc/testsuite/gcc.target/i386/avx512bw-vpackssdw-3.c
new file mode 100644
index 00000000000..ae839e8d2c6
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx512bw-vpackssdw-3.c
@@ -0,0 +1,55 @@
+/* { dg-do run } */
+/* { dg-options "-O2 -mavx512bw" } */
+/* { dg-require-effective-target avx512bw } */
+
+#define AVX512BW
+#include "avx512f-helper.h"
+
+#define DST_SIZE (AVX512F_LEN / 16)
+#define SRC_SIZE (AVX512F_LEN / 32)
+
+#include "limits.h"
+
+#include "avx512f-mask-type.h"
+
+static short
+int_to_short (int iVal)
+{
+ short sVal;
+
+ if (iVal < -32768)
+ sVal = -32768;
+ else if (iVal > 32767)
+ sVal = 32767;
+ else
+ sVal = iVal;
+
+ return sVal;
+}
+
+void
+TEST (void)
+{
+ union512i_d s1, s2;
+ union512i_w res1;
+ short dst_ref[32];
+ int i;
+
+ s1.x = _mm512_set_epi32 (1, 2, 3, 4, 65000, 20, 30, 90, 88, 44, 33, 22, 11, 98, 76, -65000);
+ s2.x = _mm512_set_epi32 (80, 40, 31, 21, 10, 99, 74, -65000, 2, 3, 4, 5, 65010, 21, 31, 91);
+ res1.x = _mm512_packs_epi32 (s1.x, s2.x);
+ for (int i = 0; i != 4; i++)
+ {
+ dst_ref[i] = int_to_short (s1.a[i]);
+ dst_ref[i + 4] = int_to_short (s2.a[i]);
+ dst_ref[i + 8] = int_to_short (s1.a[i + 4]);
+ dst_ref[i + 12] = int_to_short (s2.a[i + 4]);
+ dst_ref[i + 16] = int_to_short (s1.a[i + 8]);
+ dst_ref[i + 20] = int_to_short (s2.a[i + 8]);
+ dst_ref[i + 24] = int_to_short (s1.a[i + 12]);
+ dst_ref[i + 28] = int_to_short (s2.a[i + 12]);
+ }
+
+ if (check_union512i_w (res1, dst_ref))
+ abort ();
+}
diff --git a/gcc/testsuite/gcc.target/i386/avx512bw-vpacksswb-3.c b/gcc/testsuite/gcc.target/i386/avx512bw-vpacksswb-3.c
new file mode 100644
index 00000000000..056c735ae0e
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx512bw-vpacksswb-3.c
@@ -0,0 +1,50 @@
+/* { dg-do run } */
+/* { dg-options "-O2 -mavx512bw" } */
+/* { dg-require-effective-target avx512bw } */
+
+#define AVX512BW
+#include "avx512f-helper.h"
+
+static char
+short_to_byte (short iVal)
+{
+ short sVal;
+
+ if (iVal < -128)
+ sVal = -128;
+ else if (iVal > 127)
+ sVal = 127;
+ else
+ sVal = iVal;
+
+ return sVal;
+}
+
+void
+TEST (void)
+{
+ union512i_w s1, s2;
+ union512i_b res1;
+ char dst_ref[64];
+ int i;
+
+ s1.x = _mm512_set_epi16 (1, 2, 3, 4, 650, 20, 30, 90, 88, 44, 33, 22, 11, 98, 76, -650,
+ 128, 230, -112, -128, -3, -4, -7, 9, 10, 11, 12, 13, -223, 10, 8, 11);
+ s2.x = _mm512_set_epi16 (80, 40, 31, 21, 10, 99, 74, -650, 2, 3, 4, 5, 650, 21, 31, 91,
+ 280, -140, 310, 20, 9, 98, 73, -651, 3, 4, 5, 6, 651, 22, 32, 92);
+ res1.x = _mm512_packs_epi16 (s1.x, s2.x);
+ for (int i = 0; i != 8; i++)
+ {
+ dst_ref[i] = short_to_byte (s1.a[i]);
+ dst_ref[i + 8] = short_to_byte (s2.a[i]);
+ dst_ref[i + 16] = short_to_byte (s1.a[i + 8]);
+ dst_ref[i + 24] = short_to_byte (s2.a[i + 8]);
+ dst_ref[i + 32] = short_to_byte (s1.a[i + 16]);
+ dst_ref[i + 40] = short_to_byte (s2.a[i + 16]);
+ dst_ref[i + 48] = short_to_byte (s1.a[i + 24]);
+ dst_ref[i + 56] = short_to_byte (s2.a[i + 24]);
+ }
+
+ if (check_union512i_b (res1, dst_ref))
+ abort ();
+}
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