diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/Sparc/SparcV8ISelSimple.cpp | 14 | ||||
| -rw-r--r-- | lib/Target/SparcV8/SparcV8ISelSimple.cpp | 14 |
2 files changed, 24 insertions, 4 deletions
diff --git a/lib/Target/Sparc/SparcV8ISelSimple.cpp b/lib/Target/Sparc/SparcV8ISelSimple.cpp index bca63dbf7b..0ea1f4a2d8 100644 --- a/lib/Target/Sparc/SparcV8ISelSimple.cpp +++ b/lib/Target/Sparc/SparcV8ISelSimple.cpp @@ -1059,8 +1059,18 @@ void V8ISel::emitGEPOperation (MachineBasicBlock *MBB, unsigned memberOffset = TD.getStructLayout (StTy)->MemberOffsets[fieldIndex]; // Emit an ADD to add memberOffset to the basePtr. - BuildMI (*MBB, IP, V8::ADDri, 2, - nextBasePtrReg).addReg (basePtrReg).addZImm (memberOffset); + // We might have to copy memberOffset into a register first, if it's + // big. + if (memberOffset + 4096 < 8191) { + BuildMI (*MBB, IP, V8::ADDri, 2, + nextBasePtrReg).addReg (basePtrReg).addSImm (memberOffset); + } else { + unsigned offsetReg = makeAnotherReg (Type::IntTy); + copyConstantToRegister (MBB, IP, + ConstantInt::get(Type::IntTy, memberOffset), offsetReg); + BuildMI (*MBB, IP, V8::ADDrr, 2, + nextBasePtrReg).addReg (basePtrReg).addReg (offsetReg); + } // The next type is the member of the structure selected by the // index. Ty = StTy->getElementType (fieldIndex); diff --git a/lib/Target/SparcV8/SparcV8ISelSimple.cpp b/lib/Target/SparcV8/SparcV8ISelSimple.cpp index bca63dbf7b..0ea1f4a2d8 100644 --- a/lib/Target/SparcV8/SparcV8ISelSimple.cpp +++ b/lib/Target/SparcV8/SparcV8ISelSimple.cpp @@ -1059,8 +1059,18 @@ void V8ISel::emitGEPOperation (MachineBasicBlock *MBB, unsigned memberOffset = TD.getStructLayout (StTy)->MemberOffsets[fieldIndex]; // Emit an ADD to add memberOffset to the basePtr. - BuildMI (*MBB, IP, V8::ADDri, 2, - nextBasePtrReg).addReg (basePtrReg).addZImm (memberOffset); + // We might have to copy memberOffset into a register first, if it's + // big. + if (memberOffset + 4096 < 8191) { + BuildMI (*MBB, IP, V8::ADDri, 2, + nextBasePtrReg).addReg (basePtrReg).addSImm (memberOffset); + } else { + unsigned offsetReg = makeAnotherReg (Type::IntTy); + copyConstantToRegister (MBB, IP, + ConstantInt::get(Type::IntTy, memberOffset), offsetReg); + BuildMI (*MBB, IP, V8::ADDrr, 2, + nextBasePtrReg).addReg (basePtrReg).addReg (offsetReg); + } // The next type is the member of the structure selected by the // index. Ty = StTy->getElementType (fieldIndex); |