Fix jump tables to match gcc (and the ABI and whatnot)

llvm-svn: 30594

3 files changed, 7 insertions, 0 deletions

diff --git a/llvm/lib/Target/Alpha/AlphaISelLowering.cpp b/llvm/lib/Target/Alpha/AlphaISelLowering.cpp
index bcd60ed7535..cbbad532855 100644
--- a/llvm/lib/Target/Alpha/AlphaISelLowering.cpp
+++ b/llvm/lib/Target/Alpha/AlphaISelLowering.cpp
@@ -129,6 +129,8 @@ AlphaTargetLowering::AlphaTargetLowering(TargetMachine &TM) : TargetLowering(TM)
   setOperationAction(ISD::RET,     MVT::Other, Custom);
 
   setOperationAction(ISD::JumpTable, MVT::i64, Custom);
+  setOperationAction(ISD::JumpTable, MVT::i32, Custom);
+  setOperationAction(ISD::JumpTableRelocBase, MVT::i64, Custom);
 
   setStackPointerRegisterToSaveRestore(Alpha::R30);
 
@@ -412,6 +414,8 @@ SDOperand AlphaTargetLowering::LowerOperation(SDOperand Op, SelectionDAG &DAG) {
 							   GP, RA);
   case ISD::RET: return LowerRET(Op,DAG, getVRegRA());
   case ISD::JumpTable: return LowerJumpTable(Op, DAG);
+  case ISD::JumpTableRelocBase: 
+    return DAG.getNode(AlphaISD::GlobalBaseReg, MVT::i64);
 
   case ISD::SINT_TO_FP: {
     assert(MVT::i64 == Op.getOperand(0).getValueType() && 
diff --git a/llvm/lib/Target/Alpha/AlphaTargetAsmInfo.cpp b/llvm/lib/Target/Alpha/AlphaTargetAsmInfo.cpp
index fd77b87f2d9..ed8f6cbe4aa 100644
--- a/llvm/lib/Target/Alpha/AlphaTargetAsmInfo.cpp
+++ b/llvm/lib/Target/Alpha/AlphaTargetAsmInfo.cpp
@@ -18,4 +18,6 @@ using namespace llvm;
 AlphaTargetAsmInfo::AlphaTargetAsmInfo(const AlphaTargetMachine &TM) {
   AlignmentIsInBytes = false;
   PrivateGlobalPrefix = "$";
+  JumpTableDirective = ".gprel32";
+  JumpTableTextSection = "\t.section .rodata\n";
 }
diff --git a/llvm/lib/Target/Alpha/AlphaTargetMachine.cpp b/llvm/lib/Target/Alpha/AlphaTargetMachine.cpp
index 6204998b240..a1aab94d9a9 100644
--- a/llvm/lib/Target/Alpha/AlphaTargetMachine.cpp
+++ b/llvm/lib/Target/Alpha/AlphaTargetMachine.cpp
@@ -59,6 +59,7 @@ AlphaTargetMachine::AlphaTargetMachine(const Module &M, const std::string &FS)
     FrameInfo(TargetFrameInfo::StackGrowsDown, 16, 0),
     JITInfo(*this),
     Subtarget(M, FS) {
+  setRelocationModel(Reloc::PIC_);
 }