From: Chris Lattner <sabre@nondot.org>
Date: Wed, 17 Aug 2005 06:06:25 +0000 (+0000)
Subject: Fix a regression on X86, where FP values can be promoted too.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=fae59b99b8d1942f30a4be609423282c3fd62dd8;p=oota-llvm.git

Fix a regression on X86, where FP values can be promoted too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22822 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 44553afa3c3..7303ee2add2 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -991,7 +991,10 @@ CopyValueToVirtualRegister(SelectionDAGLowering &SDL, Value *V, unsigned Reg) {
     return DAG.getCopyToReg(SDL.getRoot(), Reg, Op);
   } else if (SrcVT < DestVT) {
     // The src value is promoted to the register.
-    Op = DAG.getNode(ISD::ZERO_EXTEND, DestVT, Op);
+    if (MVT::isFloatingPoint(SrcVT))
+      Op = DAG.getNode(ISD::FP_EXTEND, DestVT, Op);
+    else
+      Op = DAG.getNode(ISD::ZERO_EXTEND, DestVT, Op);
     return DAG.getCopyToReg(SDL.getRoot(), Reg, Op);
   } else  {
     // The src value is expanded into multiple registers.