From: Kyrylo Tkachov <kyrylo.tkachov@arm.com>
Date: Mon, 26 Jun 2023 16:54:42 +0000 (+0100)
Subject: aarch64: Use <DWI> instead of <V2XWIDE> in scalar SQRSHRUN pattern
X-Git-Tag: basepoints/gcc-15~8032
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=79d8fbbcbf09dfcb6ca18b129fd7841e0eeb0ef5;p=thirdparty%2Fgcc.git

aarch64: Use <DWI> instead of <V2XWIDE> in scalar SQRSHRUN pattern

In the scalar pattern for SQRSHRUN it's a bit clearer to use DWI instead of V2XWIDE
to make it more clear that no vector modes are involved.
No behavioural change intended.

Bootstrapped and tested on aarch64-none-linux-gnu.

gcc/ChangeLog:

	* config/aarch64/aarch64-simd.md (aarch64_sqrshrun_n<mode>_insn):
	Use <DWI> instead of <V2XWIDE>.
	(aarch64_sqrshrun_n<mode>): Likewise.
---

diff --git a/gcc/config/aarch64/aarch64-simd.md b/gcc/config/aarch64/aarch64-simd.md
index 0ea112346b0d..4052ca9ef048 100644
--- a/gcc/config/aarch64/aarch64-simd.md
+++ b/gcc/config/aarch64/aarch64-simd.md
@@ -6713,14 +6713,14 @@
 )
 
 (define_insn "aarch64_sqrshrun_n<mode>_insn"
-  [(set (match_operand:<V2XWIDE> 0 "register_operand" "=w")
-	(smin:<V2XWIDE>
-	  (smax:<V2XWIDE>
-	    (ashiftrt:<V2XWIDE>
-	      (plus:<V2XWIDE>
-		(sign_extend:<V2XWIDE>
+  [(set (match_operand:<DWI> 0 "register_operand" "=w")
+	(smin:<DWI>
+	  (smax:<DWI>
+	    (ashiftrt:<DWI>
+	      (plus:<DWI>
+		(sign_extend:<DWI>
 		  (match_operand:SD_HSDI 1 "register_operand" "w"))
-		(match_operand:<V2XWIDE> 3 "aarch64_int_rnd_operand"))
+		(match_operand:<DWI> 3 "aarch64_int_rnd_operand"))
 	      (match_operand:SI 2 "aarch64_simd_shift_imm_offset_<ve_mode>"))
 	    (const_int 0))
 	  (const_int <half_mask>)))]
@@ -6736,10 +6736,10 @@
    (match_operand:SI 2 "aarch64_simd_shift_imm_offset_<ve_mode>")]
   "TARGET_SIMD"
   {
-    int prec = GET_MODE_UNIT_PRECISION (<V2XWIDE>mode);
+    int prec = GET_MODE_UNIT_PRECISION (<DWI>mode);
     wide_int rnd_wi = wi::set_bit_in_zero (INTVAL (operands[2]) - 1, prec);
-    rtx rnd = immed_wide_int_const (rnd_wi, <V2XWIDE>mode);
-    rtx dst = gen_reg_rtx (<V2XWIDE>mode);
+    rtx rnd = immed_wide_int_const (rnd_wi, <DWI>mode);
+    rtx dst = gen_reg_rtx (<DWI>mode);
     emit_insn (gen_aarch64_sqrshrun_n<mode>_insn (dst, operands[1], operands[2], rnd));
     emit_move_insn (operands[0], gen_lowpart (<VNARROWQ>mode, dst));
     DONE;