[llvm-commits] [llvm] r74374 - /llvm/trunk/lib/Target/X86/X86CodeEmitter.cpp
Chris Lattner
sabre at nondot.org
Fri Jun 26 21:46:33 PDT 2009
Author: lattner
Date: Fri Jun 26 23:46:33 2009
New Revision: 74374
URL: http://llvm.org/viewvc/llvm-project?rev=74374&view=rev
Log:
fix a bunch of failures in the X86-64 JIT by tolerating RIP as
a base register. We just ignore it for now.
Modified:
llvm/trunk/lib/Target/X86/X86CodeEmitter.cpp
Modified: llvm/trunk/lib/Target/X86/X86CodeEmitter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86CodeEmitter.cpp?rev=74374&r1=74373&r2=74374&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86CodeEmitter.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86CodeEmitter.cpp Fri Jun 26 23:46:33 2009
@@ -301,7 +301,7 @@
template<class CodeEmitter>
void Emitter<CodeEmitter>::emitDisplacementField(const MachineOperand *RelocOp,
- int DispVal, intptr_t PCAdj) {
+ int DispVal, intptr_t PCAdj) {
// If this is a simple integer displacement that doesn't require a relocation,
// emit it now.
if (!RelocOp) {
@@ -371,8 +371,10 @@
// Is a SIB byte needed?
if ((!Is64BitMode || DispForReloc || BaseReg != 0) &&
IndexReg.getReg() == 0 &&
- (BaseReg == 0 || getX86RegNum(BaseReg) != N86::ESP)) {
- if (BaseReg == 0) { // Just a displacement?
+ (BaseReg == 0 || BaseReg == X86::RIP ||
+ getX86RegNum(BaseReg) != N86::ESP)) {
+ if (BaseReg == 0 ||
+ BaseReg == X86::RIP) { // Just a displacement?
// Emit special case [disp32] encoding
MCE.emitByte(ModRMByte(0, RegOpcodeField, 5));
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