Silly Sparc is big endian. If we have to load args out of incoming stack slots

that are smaller than an int, make sure to adjust the frame pointer to take
this into consideration.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25351 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/Sparc/SparcISelDAGToDAG.cpp b/lib/Target/Sparc/SparcISelDAGToDAG.cpp
index 08c66367141ccc4959486f1c02a150850d85e237..e09b308e1fa140b87ba40d794848d0515d810d49 100644 (file)
--- a/lib/Target/Sparc/SparcISelDAGToDAG.cpp
+++ b/lib/Target/Sparc/SparcISelDAGToDAG.cpp
@@ -241,6 +241,10 @@ SparcV8TargetLowering::LowerArguments(Function &F, SelectionDAG &DAG) {
           unsigned LoadOp =
             I->getType()->isSigned() ? ISD::SEXTLOAD : ISD::ZEXTLOAD;
 
+          // Sparc is big endian, so add an offset based on the ObjectVT.
+          unsigned Offset = 4-std::max(1U, MVT::getSizeInBits(ObjectVT)/8);
+          FIPtr = DAG.getNode(ISD::ADD, MVT::i32, FIPtr,
+                              DAG.getConstant(Offset, MVT::i32));
           Load = DAG.getExtLoad(LoadOp, MVT::i32, Root, FIPtr,
                                 DAG.getSrcValue(0), ObjectVT);
           Load = DAG.getNode(ISD::TRUNCATE, ObjectVT, Load);

diff --git a/lib/Target/SparcV8/SparcV8ISelDAGToDAG.cpp b/lib/Target/SparcV8/SparcV8ISelDAGToDAG.cpp
index 08c66367141ccc4959486f1c02a150850d85e237..e09b308e1fa140b87ba40d794848d0515d810d49 100644 (file)
--- a/lib/Target/SparcV8/SparcV8ISelDAGToDAG.cpp
+++ b/lib/Target/SparcV8/SparcV8ISelDAGToDAG.cpp
@@ -241,6 +241,10 @@ SparcV8TargetLowering::LowerArguments(Function &F, SelectionDAG &DAG) {
           unsigned LoadOp =
             I->getType()->isSigned() ? ISD::SEXTLOAD : ISD::ZEXTLOAD;
 
+          // Sparc is big endian, so add an offset based on the ObjectVT.
+          unsigned Offset = 4-std::max(1U, MVT::getSizeInBits(ObjectVT)/8);
+          FIPtr = DAG.getNode(ISD::ADD, MVT::i32, FIPtr,
+                              DAG.getConstant(Offset, MVT::i32));
           Load = DAG.getExtLoad(LoadOp, MVT::i32, Root, FIPtr,
                                 DAG.getSrcValue(0), ObjectVT);
           Load = DAG.getNode(ISD::TRUNCATE, ObjectVT, Load);