[llvm] 81a3d98 - [X86] Remove dead code from X86DAGToDAGISel::Select that is no longer needed now that we don't mutate strict fp nodes. NFC
Craig Topper via llvm-commits
llvm-commits at lists.llvm.org
Sat Jan 11 00:27:26 PST 2020
Author: Craig Topper
Date: 2020-01-11T00:27:14-08:00
New Revision: 81a3d987ced0905bef2e3055bf77ec174bb631c7
URL: https://github.com/llvm/llvm-project/commit/81a3d987ced0905bef2e3055bf77ec174bb631c7
DIFF: https://github.com/llvm/llvm-project/commit/81a3d987ced0905bef2e3055bf77ec174bb631c7.diff
LOG: [X86] Remove dead code from X86DAGToDAGISel::Select that is no longer needed now that we don't mutate strict fp nodes. NFC
Added:
Modified:
llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
Removed:
################################################################################
diff --git a/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp b/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
index 4211a122ffdc..8ea4ad86ef33 100644
--- a/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
+++ b/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
@@ -5263,34 +5263,6 @@ void X86DAGToDAGISel::Select(SDNode *Node) {
if (foldLoadStoreIntoMemOperand(Node))
return;
break;
- case ISD::FCEIL:
- case ISD::FFLOOR:
- case ISD::FTRUNC:
- case ISD::FNEARBYINT:
- case ISD::FRINT: {
- // Replace fp rounding with their X86 specific equivalent so we don't
- // need 2 sets of patterns.
- // FIXME: This can only happen when the nodes started as STRICT_* and have
- // been mutated into their non-STRICT equivalents. Eventually this
- // mutation will be removed and we should switch the STRICT_ nodes to a
- // strict version of RNDSCALE in PreProcessISelDAG.
- unsigned Imm;
- switch (Node->getOpcode()) {
- default: llvm_unreachable("Unexpected opcode!");
- case ISD::FCEIL: Imm = 0xA; break;
- case ISD::FFLOOR: Imm = 0x9; break;
- case ISD::FTRUNC: Imm = 0xB; break;
- case ISD::FNEARBYINT: Imm = 0xC; break;
- case ISD::FRINT: Imm = 0x4; break;
- }
- SDLoc dl(Node);
- SDValue Res = CurDAG->getNode(X86ISD::VRNDSCALE, dl, Node->getValueType(0),
- Node->getOperand(0),
- CurDAG->getTargetConstant(Imm, dl, MVT::i8));
- ReplaceNode(Node, Res.getNode());
- SelectCode(Res.getNode());
- return;
- }
}
SelectCode(Node);
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