From: Julian Brown <julian@codesourcery.com>
Date: Mon, 30 Nov 2020 20:01:37 +0000 (-0800)
Subject: amdgcn: Fix subdf3 pattern
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=d4e8393670ea05eadd0ac2308a99666b69362822;p=thirdparty%2Fgcc.git

amdgcn: Fix subdf3 pattern

This patch fixes a typo in the subdf3 pattern that meant it had a
non-standard name and thus the compiler would emit a libcall rather than
the proper hardware instruction for DFmode subtraction.

Backport from mainline:

2021-01-13  Julian Brown  <julian@codesourcery.com>

gcc/
	* config/gcn/gcn-valu.md (subdf): Rename to...
	(subdf3): This.

(cherry picked from commit abb3993e49c04bd40e42f196f55785cc3fd81682)
---

diff --git a/gcc/config/gcn/gcn-valu.md b/gcc/config/gcn/gcn-valu.md
index e4d7f2a0f495..34a5f35d4c79 100644
--- a/gcc/config/gcn/gcn-valu.md
+++ b/gcc/config/gcn/gcn-valu.md
@@ -2185,7 +2185,7 @@
   [(set_attr "type" "vop3a")
    (set_attr "length" "8,8")])
 
-(define_insn "subdf"
+(define_insn "subdf3"
   [(set (match_operand:DF 0 "register_operand"  "=  v,   v")
 	(minus:DF
 	  (match_operand:DF 1 "gcn_alu_operand" "vSvB,   v")