[llvm] 851176c - [AMDGPU] Remove AMDGPUISelDAGToDAG::isKnownNeverNaN

[Thomas Symalla via llvm-commits]

Author: Thomas Symalla
Date: 2022-11-30T07:58:32+01:00
New Revision: 851176c7f760ca27ef6aff4ab0b6491afd7b0304

URL: https://github.com/llvm/llvm-project/commit/851176c7f760ca27ef6aff4ab0b6491afd7b0304
DIFF: https://github.com/llvm/llvm-project/commit/851176c7f760ca27ef6aff4ab0b6491afd7b0304.diff

LOG: [AMDGPU] Remove AMDGPUISelDAGToDAG::isKnownNeverNaN

This function removes the mentioned function, as it only does two
checks which are already implemented as part of
SelectionDAG::isKnownNeverNaN - which is called there.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D138938

Added: 
    

Modified: 
    llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
    llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.h

Removed: 
    


################################################################################
diff  --git a/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp b/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
index 2f51bf82f0797..66d7efd676fff 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
@@ -316,17 +316,6 @@ void AMDGPUDAGToDAGISel::PreprocessISelDAG() {
   }
 }
 
-bool AMDGPUDAGToDAGISel::isNoNanSrc(SDValue N) const {
-  if (TM.Options.NoNaNsFPMath)
-    return true;
-
-  // TODO: Move into isKnownNeverNaN
-  if (N->getFlags().hasNoNaNs())
-    return true;
-
-  return CurDAG->isKnownNeverNaN(N);
-}
-
 bool AMDGPUDAGToDAGISel::isInlineImmediate(const SDNode *N,
                                            bool Negated) const {
   if (N->isUndef())
@@ -2643,7 +2632,7 @@ bool AMDGPUDAGToDAGISel::SelectVOP3BMods(SDValue In, SDValue &Src,
 bool AMDGPUDAGToDAGISel::SelectVOP3Mods_NNaN(SDValue In, SDValue &Src,
                                              SDValue &SrcMods) const {
   SelectVOP3Mods(In, Src, SrcMods);
-  return isNoNanSrc(Src);
+  return CurDAG->isKnownNeverNaN(Src);
 }
 
 bool AMDGPUDAGToDAGISel::SelectVOP3NoMods(SDValue In, SDValue &Src) const {

diff  --git a/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.h b/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.h
index 1a8e8f622cdd0..b516dcb9e39b7 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.h
+++ b/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.h
@@ -110,7 +110,6 @@ class AMDGPUDAGToDAGISel : public SelectionDAGISel {
 
 private:
   std::pair<SDValue, SDValue> foldFrameIndex(SDValue N) const;
-  bool isNoNanSrc(SDValue N) const;
   bool isInlineImmediate(const SDNode *N, bool Negated = false) const;
   bool isNegInlineImmediate(const SDNode *N) const {
     return isInlineImmediate(N, true);