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| author | Eric Christopher <echristo@apple.com> | 2012-05-07 05:46:43 +0000 |
|---|---|---|
| committer | Eric Christopher <echristo@apple.com> | 2012-05-07 05:46:43 +0000 |
| commit | 60cfc7908ef6acdfab0ea4af5b2c50087a8f36d8 (patch) | |
| tree | e7a4f924a77842b7708fc4ea863967485ffda56d /lib/Target/Mips | |
| parent | 5ac47bba83ac1a1b79addc8d5e36e8a468324153 (diff) | |
| download | external_llvm-60cfc7908ef6acdfab0ea4af5b2c50087a8f36d8.zip external_llvm-60cfc7908ef6acdfab0ea4af5b2c50087a8f36d8.tar.gz external_llvm-60cfc7908ef6acdfab0ea4af5b2c50087a8f36d8.tar.bz2 | |
Add support for the 'N' inline asm constraint.
Patch by Jack Carter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156284 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Mips')
| -rw-r--r-- | lib/Target/Mips/MipsISelLowering.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/Target/Mips/MipsISelLowering.cpp b/lib/Target/Mips/MipsISelLowering.cpp index 3f445a0..ded6aa0 100644 --- a/lib/Target/Mips/MipsISelLowering.cpp +++ b/lib/Target/Mips/MipsISelLowering.cpp @@ -3043,6 +3043,7 @@ MipsTargetLowering::getSingleConstraintMatchWeight( case 'J': // integer zero case 'K': // unsigned 16 bit immediate case 'L': // signed 32 bit immediate where lower 16 bits are 0 + case 'N': // immediate in the range of -65535 to -1 (inclusive) if (isa<ConstantInt>(CallOperandVal)) weight = CW_Constant; break; @@ -3135,6 +3136,16 @@ void MipsTargetLowering::LowerAsmOperandForConstraint(SDValue Op, } } return; + case 'N': // immediate in the range of -65535 to -1 (inclusive) + if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(Op)) { + EVT Type = Op.getValueType(); + int64_t Val = C->getSExtValue(); + if ((Val >= -65535) && (Val <= -1)) { + Result = DAG.getTargetConstant(Val, Type); + break; + } + } + return; } if (Result.getNode()) { |