[llvm] r288622 - [X86] Mark 256-bit DPPS intrinsic as commutable to increase load matching opportunities.

[Craig Topper via llvm-commits]

Author: ctopper
Date: Sun Dec  4 15:13:05 2016
New Revision: 288622

URL: http://llvm.org/viewvc/llvm-project?rev=288622&view=rev
Log:
[X86] Mark 256-bit DPPS intrinsic as commutable to increase load matching opportunities.

Modified:
    llvm/trunk/include/llvm/IR/IntrinsicsX86.td

Modified: llvm/trunk/include/llvm/IR/IntrinsicsX86.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/IR/IntrinsicsX86.td?rev=288622&r1=288621&r2=288622&view=diff
==============================================================================
--- llvm/trunk/include/llvm/IR/IntrinsicsX86.td (original)
+++ llvm/trunk/include/llvm/IR/IntrinsicsX86.td Sun Dec  4 15:13:05 2016
@@ -1421,7 +1421,7 @@ let TargetPrefix = "x86" in {  // All in
 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