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* [gcc r14-5753] AArch64: fix aarch64_usubw pattern
@ 2023-11-22 10:37 Tamar Christina
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From: Tamar Christina @ 2023-11-22 10:37 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:c2ef4708856f2ccb7ce96489c6ee4b8c775257a8
commit r14-5753-gc2ef4708856f2ccb7ce96489c6ee4b8c775257a8
Author: Tamar Christina <tamar.christina@arm.com>
Date: Wed Nov 22 10:36:43 2023 +0000
AArch64: fix aarch64_usubw pattern
It looks like during my pre-commit testrun I forgot to apply this patch
to the patch stack. It had a typo in the element size.
It also looks like since the hi/lo operations take different element
counts for the assembler syntax that I can't have a unified pattern.
gcc/ChangeLog:
* config/aarch64/aarch64-simd.md
(aarch64_uaddw<mode>_<PERM_EXTEND:perm_hilo>_zip,
aarch64_usubw<mode>_<PERM_EXTEND:perm_hilo>_zip): Split into...
(aarch64_uaddw<mode>_lo_zip, aarch64_uaddw<mode>_hi_zip,
"aarch64_usubw<mode>_lo_zip, "aarch64_usubw<mode>_hi_zip): ... This.
* config/aarch64/iterators.md (PERM_EXTEND, perm_index): Remove.
(perm_hilo): Remove UNSPEC_ZIP1, UNSPEC_ZIP2.
gcc/testsuite/ChangeLog:
* gcc.target/aarch64/uxtl-combine-4.c: Fix typo.
* gcc.target/aarch64/uxtl-combine-5.c: Likewise.
* gcc.target/aarch64/uxtl-combine-6.c: Likewise.
Diff:
---
gcc/config/aarch64/aarch64-simd.md | 40 +++++++++++++++++++----
gcc/config/aarch64/iterators.md | 8 +----
gcc/testsuite/gcc.target/aarch64/uxtl-combine-4.c | 2 +-
gcc/testsuite/gcc.target/aarch64/uxtl-combine-5.c | 2 +-
gcc/testsuite/gcc.target/aarch64/uxtl-combine-6.c | 2 +-
5 files changed, 38 insertions(+), 16 deletions(-)
diff --git a/gcc/config/aarch64/aarch64-simd.md b/gcc/config/aarch64/aarch64-simd.md
index 75ee6598710..80e338bb895 100644
--- a/gcc/config/aarch64/aarch64-simd.md
+++ b/gcc/config/aarch64/aarch64-simd.md
@@ -4810,7 +4810,7 @@
[(set_attr "type" "neon_sub_widen")]
)
-(define_insn "aarch64_usubw<mode>_<PERM_EXTEND:perm_hilo>_zip"
+(define_insn "aarch64_usubw<mode>_lo_zip"
[(set (match_operand:<VWIDE> 0 "register_operand" "=w")
(minus:<VWIDE>
(match_operand:<VWIDE> 1 "register_operand" "w")
@@ -4818,23 +4818,51 @@
(unspec:<MODE> [
(match_operand:VQW 2 "register_operand" "w")
(match_operand:VQW 3 "aarch64_simd_imm_zero")
- ] PERM_EXTEND) 0)))]
+ ] UNSPEC_ZIP1) 0)))]
"TARGET_SIMD"
- "usubw<PERM_EXTEND:perm_index>\\t%0.<Vwtype>, %1.<Vwtype>, %2.<Vhalftype>"
+ "usubw\\t%0.<Vwtype>, %1.<Vwtype>, %2.<Vhalftype>"
[(set_attr "type" "neon_sub_widen")]
)
-(define_insn "aarch64_uaddw<mode>_<PERM_EXTEND:perm_hilo>_zip"
+(define_insn "aarch64_uaddw<mode>_lo_zip"
[(set (match_operand:<VWIDE> 0 "register_operand" "=w")
(plus:<VWIDE>
(subreg:<VWIDE>
(unspec:<MODE> [
(match_operand:VQW 2 "register_operand" "w")
(match_operand:VQW 3 "aarch64_simd_imm_zero")
- ] PERM_EXTEND) 0)
+ ] UNSPEC_ZIP1) 0)
(match_operand:<VWIDE> 1 "register_operand" "w")))]
"TARGET_SIMD"
- "uaddw<PERM_EXTEND:perm_index>\\t%0.<Vwtype>, %1.<Vwtype>, %2.<Vhalftype>"
+ "uaddw\\t%0.<Vwtype>, %1.<Vwtype>, %2.<Vhalftype>"
+ [(set_attr "type" "neon_add_widen")]
+)
+
+(define_insn "aarch64_usubw<mode>_hi_zip"
+ [(set (match_operand:<VWIDE> 0 "register_operand" "=w")
+ (minus:<VWIDE>
+ (match_operand:<VWIDE> 1 "register_operand" "w")
+ (subreg:<VWIDE>
+ (unspec:<MODE> [
+ (match_operand:VQW 2 "register_operand" "w")
+ (match_operand:VQW 3 "aarch64_simd_imm_zero")
+ ] UNSPEC_ZIP2) 0)))]
+ "TARGET_SIMD"
+ "usubw2\\t%0.<Vwtype>, %1.<Vwtype>, %2.<Vtype>"
+ [(set_attr "type" "neon_sub_widen")]
+)
+
+(define_insn "aarch64_uaddw<mode>_hi_zip"
+ [(set (match_operand:<VWIDE> 0 "register_operand" "=w")
+ (plus:<VWIDE>
+ (subreg:<VWIDE>
+ (unspec:<MODE> [
+ (match_operand:VQW 2 "register_operand" "w")
+ (match_operand:VQW 3 "aarch64_simd_imm_zero")
+ ] UNSPEC_ZIP2) 0)
+ (match_operand:<VWIDE> 1 "register_operand" "w")))]
+ "TARGET_SIMD"
+ "uaddw2\\t%0.<Vwtype>, %1.<Vwtype>, %2.<Vtype>"
[(set_attr "type" "neon_add_widen")]
)
diff --git a/gcc/config/aarch64/iterators.md b/gcc/config/aarch64/iterators.md
index 2354315d7d2..a920de99ffc 100644
--- a/gcc/config/aarch64/iterators.md
+++ b/gcc/config/aarch64/iterators.md
@@ -2645,9 +2645,6 @@
(define_int_iterator OPTAB_PERMUTE [UNSPEC_ZIP1 UNSPEC_ZIP2
UNSPEC_UZP1 UNSPEC_UZP2])
-;; Permutes for zero extends
-(define_int_iterator PERM_EXTEND [UNSPEC_ZIP1 UNSPEC_ZIP2])
-
(define_int_iterator REVERSE [UNSPEC_REV64 UNSPEC_REV32 UNSPEC_REV16])
(define_int_iterator FRINT [UNSPEC_FRINTZ UNSPEC_FRINTP UNSPEC_FRINTM
@@ -3470,10 +3467,7 @@
(UNSPEC_REV16 "16")])
(define_int_attr perm_hilo [(UNSPEC_UNPACKSHI "hi") (UNSPEC_UNPACKUHI "hi")
- (UNSPEC_UNPACKSLO "lo") (UNSPEC_UNPACKULO "lo")
- (UNSPEC_ZIP2 "hi") (UNSPEC_ZIP1 "lo")])
-
-(define_int_attr perm_index [(UNSPEC_ZIP2 "2") (UNSPEC_ZIP1 "")])
+ (UNSPEC_UNPACKSLO "lo") (UNSPEC_UNPACKULO "lo")])
;; Return true if the associated optab refers to the high-numbered lanes,
;; false if it refers to the low-numbered lanes. The convention is for
diff --git a/gcc/testsuite/gcc.target/aarch64/uxtl-combine-4.c b/gcc/testsuite/gcc.target/aarch64/uxtl-combine-4.c
index e1a9c4f5661..67944f70ecc 100755
--- a/gcc/testsuite/gcc.target/aarch64/uxtl-combine-4.c
+++ b/gcc/testsuite/gcc.target/aarch64/uxtl-combine-4.c
@@ -16,5 +16,5 @@ void d2 (SIGN TYPE2 * restrict a, SIGN TYPE1 *b, int n)
/* { dg-final { scan-assembler-not {\tzip1\t} } } */
/* { dg-final { scan-assembler-not {\tzip2\t} } } */
/* { dg-final { scan-assembler-times {\tsxtl\t} 1 } } */
-/* { dg-final { scan-assembler-time {\tsxtl2\t} 1 } } */
+/* { dg-final { scan-assembler-times {\tsxtl2\t} 1 } } */
diff --git a/gcc/testsuite/gcc.target/aarch64/uxtl-combine-5.c b/gcc/testsuite/gcc.target/aarch64/uxtl-combine-5.c
index 92b09ba4abb..e691c4f0b59 100755
--- a/gcc/testsuite/gcc.target/aarch64/uxtl-combine-5.c
+++ b/gcc/testsuite/gcc.target/aarch64/uxtl-combine-5.c
@@ -16,5 +16,5 @@ void d2 (SIGN TYPE2 * restrict a, SIGN TYPE1 *b, int n)
/* { dg-final { scan-assembler-not {\tzip1\t} } } */
/* { dg-final { scan-assembler-not {\tzip2\t} } } */
/* { dg-final { scan-assembler-times {\tsxtl\t} 1 } } */
-/* { dg-final { scan-assembler-time {\tsxtl2\t} 1 } } */
+/* { dg-final { scan-assembler-times {\tsxtl2\t} 1 } } */
diff --git a/gcc/testsuite/gcc.target/aarch64/uxtl-combine-6.c b/gcc/testsuite/gcc.target/aarch64/uxtl-combine-6.c
index 5c6e635f29d..9383f7ebf93 100755
--- a/gcc/testsuite/gcc.target/aarch64/uxtl-combine-6.c
+++ b/gcc/testsuite/gcc.target/aarch64/uxtl-combine-6.c
@@ -16,5 +16,5 @@ void d2 (SIGN TYPE2 * restrict a, SIGN TYPE1 *b, int n)
/* { dg-final { scan-assembler-not {\tzip1\t} } } */
/* { dg-final { scan-assembler-not {\tzip2\t} } } */
/* { dg-final { scan-assembler-times {\tsxtl\t} 1 } } */
-/* { dg-final { scan-assembler-time {\tsxtl2\t} 1 } } */
+/* { dg-final { scan-assembler-times {\tsxtl2\t} 1 } } */
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