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| author | Eric Christopher <echristo@apple.com> | 2011-07-01 01:00:07 +0000 |
|---|---|---|
| committer | Eric Christopher <echristo@apple.com> | 2011-07-01 01:00:07 +0000 |
| commit | 5e653c925c7da969c3fb5fa9a46263ffb160b81e (patch) | |
| tree | a7359b33afbdc323fc4d59a23f163c59d227e570 /lib | |
| parent | 30cb6dda5ae441f27edef302cbb33936fbafba6d (diff) | |
| download | external_llvm-5e653c925c7da969c3fb5fa9a46263ffb160b81e.tar.gz external_llvm-5e653c925c7da969c3fb5fa9a46263ffb160b81e.tar.bz2 external_llvm-5e653c925c7da969c3fb5fa9a46263ffb160b81e.zip | |
Add support for the 'j' immediate constraint. This is conditionalized on
supporting the instruction that the constraint is for 'movw'.
Part of rdar://9119939
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134222 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/ARM/ARMISelLowering.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp index 4a78ad4bf2..fb738cd65c 100644 --- a/lib/Target/ARM/ARMISelLowering.cpp +++ b/lib/Target/ARM/ARMISelLowering.cpp @@ -7485,6 +7485,7 @@ ARMTargetLowering::getConstraintType(const std::string &Constraint) const { case 'h': return C_RegisterClass; case 'x': return C_RegisterClass; case 't': return C_RegisterClass; + case 'j': return C_Other; // Constant for movw. } } else if (Constraint.size() == 2) { switch (Constraint[0]) { @@ -7590,6 +7591,7 @@ void ARMTargetLowering::LowerAsmOperandForConstraint(SDValue Op, char ConstraintLetter = Constraint[0]; switch (ConstraintLetter) { default: break; + case 'j': case 'I': case 'J': case 'K': case 'L': case 'M': case 'N': case 'O': ConstantSDNode *C = dyn_cast<ConstantSDNode>(Op); @@ -7604,6 +7606,13 @@ void ARMTargetLowering::LowerAsmOperandForConstraint(SDValue Op, return; switch (ConstraintLetter) { + case 'j': + // Constant suitable for movw, must be between 0 and + // 65535. + if (Subtarget->hasV6T2Ops()) + if (CVal >= 0 && CVal <= 65535) + break; + return; case 'I': if (Subtarget->isThumb1Only()) { // This must be a constant between 0 and 255, for ADD |