[llvm] 476bb2d - [AMDGPU] Remove dead code from shrinkScalarLogicOp

[Jay Foad via llvm-commits]

Author: Jay Foad
Date: 2022-02-09T17:07:12Z
New Revision: 476bb2d94e7158557bafdee5348fb8e38f8e0bb4

URL: https://github.com/llvm/llvm-project/commit/476bb2d94e7158557bafdee5348fb8e38f8e0bb4
DIFF: https://github.com/llvm/llvm-project/commit/476bb2d94e7158557bafdee5348fb8e38f8e0bb4.diff

LOG: [AMDGPU] Remove dead code from shrinkScalarLogicOp

It looks like this code has been dead since shrinkScalarLogicOp
was introduced in svn r348601.

Added: 
    

Modified: 
    llvm/lib/Target/AMDGPU/SIShrinkInstructions.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/lib/Target/AMDGPU/SIShrinkInstructions.cpp b/llvm/lib/Target/AMDGPU/SIShrinkInstructions.cpp
index c8f1daf26de9..a15686c637cd 100644
--- a/llvm/lib/Target/AMDGPU/SIShrinkInstructions.cpp
+++ b/llvm/lib/Target/AMDGPU/SIShrinkInstructions.cpp
@@ -354,12 +354,6 @@ static bool shrinkScalarLogicOp(const GCNSubtarget &ST,
     llvm_unreachable("unexpected opcode");
   }
 
-  if ((Opc == AMDGPU::S_ANDN2_B32 || Opc == AMDGPU::S_ORN2_B32) &&
-      SrcImm == Src0) {
-    if (!TII->commuteInstruction(MI, false, 1, 2))
-      NewImm = 0;
-  }
-
   if (NewImm != 0) {
     if (Dest->getReg().isVirtual() && SrcReg->isReg()) {
       MRI.setRegAllocationHint(Dest->getReg(), 0, SrcReg->getReg());