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[PATCH][AArch64] Add a SHA1H pattern
- From: Wilco Dijkstra <Wilco dot Dijkstra at arm dot com>
- To: GCC Patches <gcc-patches at gcc dot gnu dot org>
- Cc: nd <nd at arm dot com>
- Date: Wed, 26 Oct 2016 12:11:44 +0000
- Subject: [PATCH][AArch64] Add a SHA1H pattern
- Authentication-results: sourceware.org; auth=none
- Nodisclaimer: True
- Spamdiagnosticmetadata: NSPM
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Add a SHA1H pattern with a V2SI input. This avoids unnecessary
DUPs when using intrinsics like vsha1h_u32 (vgetq_lane_u32 (x, 0)).
ChangeLog:
2016-10-26 Wilco Dijkstra <wdijkstr@arm.com>
* config/aarch64/aarch64-simd.md (aarch64_crypto_sha1hv4si): New pattern.
--
diff --git a/gcc/config/aarch64/aarch64-simd.md b/gcc/config/aarch64/aarch64-simd.md
index 9ce7f00050913aebd9f83ae9c4ce4ad469dd0d98..47f1740aa8bcab948607e00c2503a34aafb5ba0e 100644
--- a/gcc/config/aarch64/aarch64-simd.md
+++ b/gcc/config/aarch64/aarch64-simd.md
@@ -5705,6 +5705,16 @@
[(set_attr "type" "crypto_sha1_fast")]
)
+(define_insn "aarch64_crypto_sha1hv4si"
+ [(set (match_operand:SI 0 "register_operand" "=w")
+ (unspec:SI [(vec_select:SI (match_operand:V4SI 1 "register_operand" "w")
+ (parallel [(const_int 0)]))]
+ UNSPEC_SHA1H))]
+ "TARGET_SIMD && TARGET_CRYPTO"
+ "sha1h\\t%s0, %s1"
+ [(set_attr "type" "crypto_sha1_fast")]
+)
+
(define_insn "aarch64_crypto_sha1su1v4si"
[(set (match_operand:V4SI 0 "register_operand" "=w")
(unspec:V4SI [(match_operand:V4SI 1 "register_operand" "0")