From 7107c10501e62d2e3ed34b349585e616b8f6da3e Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Mon, 29 Aug 2005 22:22:57 +0000
Subject: [PATCH] Fix a dumb bug of mine where we were mishandling the PPC ABI
 (undef handling). This fixes voronoi and bh in Olden, allowing all of olden
 to pass!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23133 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/PowerPC/PPCISelDAGToDAG.cpp | 31 +++++++++++++-------------
 1 file changed, 16 insertions(+), 15 deletions(-)

diff --git a/lib/Target/PowerPC/PPCISelDAGToDAG.cpp b/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
index e7e1c9ed874..78d1cb42b87 100644
--- a/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
+++ b/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
@@ -1479,27 +1479,28 @@ SDOperand PPC32DAGToDAGISel::Select(SDOperand Op) {
       PPC::F8, PPC::F9, PPC::F10, PPC::F11, PPC::F12, PPC::F13
     };
     
-    for (unsigned i = 2, e = N->getNumOperands(); i != e; ++i)
+    for (unsigned i = 2, e = N->getNumOperands(); i != e; ++i) {
+      unsigned DestReg = 0;
+      MVT::ValueType RegTy;
+      if (N->getOperand(i).getValueType() == MVT::i32) {
+        assert(GPR_idx < 8 && "Too many int args");
+        DestReg = GPR[GPR_idx++];
+        RegTy = MVT::i32;
+      } else {
+        assert(MVT::isFloatingPoint(N->getOperand(i).getValueType()) &&
+               "Unpromoted integer arg?");
+        assert(FPR_idx < 13 && "Too many fp args");
+        DestReg = FPR[FPR_idx++];
+        RegTy = MVT::f64;   // Even if this is really f32!
+      }
+
       if (N->getOperand(i).getOpcode() != ISD::UNDEF) {
-        unsigned DestReg = 0;
-        MVT::ValueType RegTy;
-        if (N->getOperand(i).getValueType() == MVT::i32) {
-          assert(GPR_idx < 8 && "Too many int args");
-          DestReg = GPR[GPR_idx++];
-          RegTy = MVT::i32;
-        } else {
-          assert(MVT::isFloatingPoint(N->getOperand(i).getValueType()) &&
-                 "Unpromoted integer arg?");
-          assert(FPR_idx < 13 && "Too many fp args");
-          DestReg = FPR[FPR_idx++];
-          RegTy = MVT::f64;   // Even if this is really f32!
-        }
-        
         SDOperand Reg = CurDAG->getRegister(DestReg, RegTy);
         Chain = CurDAG->getNode(ISD::CopyToReg, MVT::Other, Chain, Reg,
                                 Select(N->getOperand(i)));
         CallOperands.push_back(Reg);
       }
+    }
 
     // Finally, once everything is in registers to pass to the call, emit the
     // call itself.