From: Craig Topper <craig.topper@gmail.com>
Date: Sun, 4 Dec 2016 21:13:05 +0000 (+0000)
Subject: [X86] Mark 256-bit DPPS intrinsic as commutable to increase load matching opportunities.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=0cd80ce736e41e313424816f648c8e9a4a1116e3;p=llvm

[X86] Mark 256-bit DPPS intrinsic as commutable to increase load matching opportunities.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@288622 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/IR/IntrinsicsX86.td b/include/llvm/IR/IntrinsicsX86.td
index 4312a7e35d7..565ecc62377 100644
--- a/include/llvm/IR/IntrinsicsX86.td
+++ b/include/llvm/IR/IntrinsicsX86.td
@@ -1421,7 +1421,7 @@ let TargetPrefix = "x86" in {  // All intrinsics start with "llvm.x86.".
 let TargetPrefix = "x86" in {  // All intrinsics start with "llvm.x86.".
   def int_x86_avx_dp_ps_256 : GCCBuiltin<"__builtin_ia32_dpps256">,
         Intrinsic<[llvm_v8f32_ty], [llvm_v8f32_ty,
-                  llvm_v8f32_ty, llvm_i8_ty], [IntrNoMem]>;
+                  llvm_v8f32_ty, llvm_i8_ty], [IntrNoMem, Commutative]>;
 }
 
 // Vector compare