From: Chris Lattner <sabre@nondot.org>
Date: Wed, 11 Jan 2006 18:21:25 +0000 (+0000)
Subject: Dead FP arguments still use an incoming FP reg.  This fixes
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=413b979fe4b3482f347fc7b613d7dcda81e34874;p=oota-llvm.git

Dead FP arguments still use an incoming FP reg.  This fixes
Regression/CodeGen/PowerPC/2006-01-11-darwin-fp-argument.ll, which was
distilled from a miscompilation in 252.eon.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25217 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp
index 75be67021ab..976f80fafa9 100644
--- a/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -509,7 +509,13 @@ PPCTargetLowering::LowerArguments(Function &F, SelectionDAG &DAG) {
     case MVT::f32:
     case MVT::f64:
       ObjSize = (ObjectVT == MVT::f64) ? 8 : 4;
-      if (!ArgLive) break;
+      if (!ArgLive) {
+        if (FPR_remaining > 0) {
+          --FPR_remaining;
+          ++FPR_idx;
+        }        
+        break;
+      }
       if (FPR_remaining > 0) {
         unsigned VReg;
         if (ObjectVT == MVT::f32)