[AMDGPU] isSDNodeAlwaysUniform - silence static analyzer dyn_cast<LoadSDNode> null...

The static analyzer is warning about a potential null dereference, but we should be able to use cast<LoadSDNode> directly and if not assert will fire for us.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@372528 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/AMDGPU/AMDGPUISelLowering.cpp b/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
index c24ea043fc3b14e96ed65ebbf3e434233db1c8e5..203cc672b6202653b6eeb79ea42bd946cd818c02 100644 (file)
--- a/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
+++ b/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
@@ -718,9 +718,8 @@ bool AMDGPUTargetLowering::isSDNodeAlwaysUniform(const SDNode * N) const {
     break;
     case ISD::LOAD:
     {
-      const LoadSDNode * L = dyn_cast<LoadSDNode>(N);
-      if (L->getMemOperand()->getAddrSpace()
-      == AMDGPUAS::CONSTANT_ADDRESS_32BIT)
+      if (cast<LoadSDNode>(N)->getMemOperand()->getAddrSpace() ==
+          AMDGPUAS::CONSTANT_ADDRESS_32BIT)
         return true;
       return false;
     }