From: Andrew Stubbs <ams@codesourcery.com>
Date: Fri, 15 Jul 2022 14:28:44 +0000 (+0100)
Subject: amdgcn: 64-bit not
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6b8d8ac8eabbb9959d888b88034fb68b8a54fda7;p=thirdparty%2Fgcc.git

amdgcn: 64-bit not

This makes the auto-vectorizer happier when handling masks.

gcc/ChangeLog:

	* config/gcn/gcn.md (one_cmpldi2): New.

(cherry picked from commit 8f4d9c1dedac54942ad28cc1647d48959bec9e77)
---

diff --git a/gcc/ChangeLog.omp b/gcc/ChangeLog.omp
index 7728dd9b2bf6..c1de5d4f4ac5 100644
--- a/gcc/ChangeLog.omp
+++ b/gcc/ChangeLog.omp
@@ -1,3 +1,8 @@
+2022-08-02  Andrew Stubbs  <ams@codesourcery.com>
+
+	Backport from mainline:
+	* config/gcn/gcn.md (one_cmpldi2): New.
+
 2022-08-01  Tobias Burnus  <tobias@codesourcery.com>
 
 	Backport from mainline:
diff --git a/gcc/config/gcn/gcn.md b/gcc/config/gcn/gcn.md
index 0f9381c91941..7197d2f5a2ea 100644
--- a/gcc/config/gcn/gcn.md
+++ b/gcc/config/gcn/gcn.md
@@ -1709,6 +1709,26 @@
 ;; }}}
 ;; {{{ ALU: generic 64-bit
 
+(define_insn_and_split "one_cmpldi2"
+  [(set (match_operand:DI 0 "register_operand"        "=Sg,    v")
+	(not:DI (match_operand:DI 1 "gcn_alu_operand" "SgA,vSvDB")))
+   (clobber (match_scratch:BI 2			      "=cs,    X"))]
+  ""
+  "#"
+  "reload_completed"
+  [(parallel [(set (match_dup 3) (not:SI (match_dup 4)))
+	      (clobber (match_dup 2))])
+   (parallel [(set (match_dup 5) (not:SI (match_dup 6)))
+	      (clobber (match_dup 2))])]
+  {
+    operands[3] = gcn_operand_part (DImode, operands[0], 0);
+    operands[4] = gcn_operand_part (DImode, operands[1], 0);
+    operands[5] = gcn_operand_part (DImode, operands[0], 1);
+    operands[6] = gcn_operand_part (DImode, operands[1], 1);
+  }
+  [(set_attr "type" "mult")]
+)
+
 (define_code_iterator vec_and_scalar64_com [and ior xor])
 
 (define_insn_and_split "<expander>di3"