From 89da6990929d2a03a4ed5063f75a9d84bc0c17e9 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Sat, 27 Jun 2009 01:31:51 +0000
Subject: [PATCH] Fix PR4466 by making fastisel set operand flags correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74366 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/X86/X86FastISel.cpp   | 17 ++++++++++++-----
 lib/Target/X86/X86InstrBuilder.h |  4 ++--
 2 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/lib/Target/X86/X86FastISel.cpp b/lib/Target/X86/X86FastISel.cpp
index 2bcfd76a8cf..30628028c5c 100644
--- a/lib/Target/X86/X86FastISel.cpp
+++ b/lib/Target/X86/X86FastISel.cpp
@@ -1493,15 +1493,22 @@ unsigned X86FastISel::TargetMaterializeConstant(Constant *C) {
   
   // x86-32 PIC requires a PIC base register for constant pools.
   unsigned PICBase = 0;
-  if (TM.getRelocationModel() == Reloc::PIC_ &&
-      !Subtarget->is64Bit())
-    PICBase = getInstrInfo()->getGlobalBaseReg(&MF);
+  unsigned char OpFlag = 0;
+  if (TM.getRelocationModel() == Reloc::PIC_) {
+    if (Subtarget->isPICStyleStub()) {
+      OpFlag = X86II::MO_PIC_BASE_OFFSET;
+      PICBase = getInstrInfo()->getGlobalBaseReg(&MF);
+    } else if (Subtarget->isPICStyleGOT()) {
+      OpFlag = X86II::MO_GOTOFF;
+      PICBase = getInstrInfo()->getGlobalBaseReg(&MF);
+    }
+  }
 
   // Create the load from the constant pool.
   unsigned MCPOffset = MCP.getConstantPoolIndex(C, Align);
   unsigned ResultReg = createResultReg(RC);
-  addConstantPoolReference(BuildMI(MBB, DL, TII.get(Opc), ResultReg), MCPOffset,
-                           PICBase);
+  addConstantPoolReference(BuildMI(MBB, DL, TII.get(Opc), ResultReg),
+                           MCPOffset, PICBase, OpFlag);
 
   return ResultReg;
 }
diff --git a/lib/Target/X86/X86InstrBuilder.h b/lib/Target/X86/X86InstrBuilder.h
index 39504cd44ce..b50dd65a299 100644
--- a/lib/Target/X86/X86InstrBuilder.h
+++ b/lib/Target/X86/X86InstrBuilder.h
@@ -157,10 +157,10 @@ addFrameReference(const MachineInstrBuilder &MIB, int FI, int Offset = 0) {
 ///
 inline const MachineInstrBuilder &
 addConstantPoolReference(const MachineInstrBuilder &MIB, unsigned CPI,
-                         unsigned GlobalBaseReg = 0) {
+                         unsigned GlobalBaseReg, unsigned char OpFlags) {
   //FIXME: factor this
   return MIB.addReg(GlobalBaseReg).addImm(1).addReg(0)
-    .addConstantPoolIndex(CPI).addReg(0);
+    .addConstantPoolIndex(CPI, 0, OpFlags).addReg(0);
 }
 
 } // End llvm namespace
-- 
2.34.1