[llvm] [NVPTX] Rework and cleanup FTZ ISel (PR #146410)

[Alex MacLean via llvm-commits]

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@@ -363,23 +363,29 @@ bool NVPTXDAGToDAGISel::tryIntrinsicChain(SDNode *N) {
 
 // Map ISD:CONDCODE value to appropriate CmpMode expected by
 // NVPTXInstPrinter::printCmpMode()
-static unsigned getPTXCmpMode(const CondCodeSDNode &CondCode, bool FTZ) {
+SDValue NVPTXDAGToDAGISel::getPTXCmpMode(const CondCodeSDNode &CondCode) {
   using NVPTX::PTXCmpMode::CmpMode;
-  unsigned PTXCmpMode = [](ISD::CondCode CC) {
+  const unsigned PTXCmpMode = [](ISD::CondCode CC) {
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AlexMaclean wrote:

See above

https://github.com/llvm/llvm-project/pull/146410