[PATCH] D69598: Work on cleaning up denormal mode handling

[Sanjay Patel via Phabricator via cfe-commits]

spatel accepted this revision.
spatel added a comment.
This revision is now accepted and ready to land.

LGTM - see inline for some leftover naming diffs.



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Comment at: clang/lib/CodeGen/CGCall.cpp:1744-1745
       FuncAttrs.addAttribute("null-pointer-is-valid", "true");
-    if (!CodeGenOpts.FPDenormalMode.empty())
-      FuncAttrs.addAttribute("denormal-fp-math", CodeGenOpts.FPDenormalMode);
+    if (CodeGenOpts.FPSubnormalMode != llvm::SubnormalMode::Invalid)
+      FuncAttrs.addAttribute("denormal-fp-math",
+                             llvm::subnormalModeName(CodeGenOpts.FPSubnormalMode));
----------------
If I'm seeing it correctly, this can't build as-is? FPSubnormalMode is called FPDenormalMode in the header change above here.


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Comment at: llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp:20469
         ISD::NodeType SelOpcode = VT.isVector() ? ISD::VSELECT : ISD::SELECT;
-        const Function &F = DAG.getMachineFunction().getFunction();
-        Attribute Denorms = F.getFnAttribute("denormal-fp-math");
-        if (Denorms.getValueAsString().equals("ieee")) {
+        DenormalMode SubnormMode = DAG.getDenormalMode(VT);
+        if (SubnormMode == DenormalMode::IEEE) {
----------------
SubnormMode -> DenormMode


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D69598/new/

https://reviews.llvm.org/D69598