Re-commit: [AMDGPU] Use S_DENORM_MODE for gfx10

Summary: During fdiv32 lowering use S_DENORM_MODE to select denorm mode in gfx10.

Reviewers: arsenm, rampitec

Reviewed By: arsenm, rampitec

Subscribers: arsenm, kzhuravl, jvesely, wdng, nhaehnle, yaxunl, dstuttard, tpr, t-tye, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65620

llvm-svn: 367969
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp b/llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
index 90e0369..da2169a 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
@@ -4221,6 +4221,7 @@
   NODE_NAME_CASE(FRACT)
   NODE_NAME_CASE(SETCC)
   NODE_NAME_CASE(SETREG)
+  NODE_NAME_CASE(DENORM_MODE)
   NODE_NAME_CASE(FMA_W_CHAIN)
   NODE_NAME_CASE(FMUL_W_CHAIN)
   NODE_NAME_CASE(CLAMP)