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[FastISel][ARM] Fix a bug in the integer materialization code.

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getRegClassFor returns the incorrect register class when in Thumb2 mode.
This fix simply manually selects the register class as in the code just a few
lines above.

There is no test case for this code, because the code is currently
unreachable. This will be changed in a future commit and existing test
cases will exercise this code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215583 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Juergen Ributzka 2014-08-13 21:39:18 +00:00
parent eac0bae1e8
commit c76c3fe5cf
1 changed files with 3 additions and 1 deletions
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4
lib/Target/ARM/ARMFastISel.cpp
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@ -536,7 +536,9 @@ unsigned ARMFastISel::ARMMaterializeInt(const Constant *C, MVT VT) {
(ARM_AM::getSOImmVal(Imm) != -1);
if (UseImm) {
unsigned Opc = isThumb2 ? ARM::t2MVNi : ARM::MVNi;
unsigned ImmReg = createResultReg(TLI.getRegClassFor(MVT::i32));
const TargetRegisterClass *RC = isThumb2 ? &ARM::rGPRRegClass :
&ARM::GPRRegClass;
unsigned ImmReg = createResultReg(RC);
AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
TII.get(Opc), ImmReg)
.addImm(Imm));