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-rw-r--r--lib/Target/SparcV9/SparcV9PreSelection.cpp24
1 files changed, 24 insertions, 0 deletions
diff --git a/lib/Target/SparcV9/SparcV9PreSelection.cpp b/lib/Target/SparcV9/SparcV9PreSelection.cpp
index 7e801243ae..a13019e206 100644
--- a/lib/Target/SparcV9/SparcV9PreSelection.cpp
+++ b/lib/Target/SparcV9/SparcV9PreSelection.cpp
@@ -146,6 +146,30 @@ static Instruction* DecomposeConstantExpr(ConstantExpr* CE,
return new SelectInst (C, S1, S2, "constantSelect", &insertBefore);
}
+ case Instruction::Shr: {
+ getArg1 = CE->getOperand(0);
+ if (ConstantExpr* CEarg = dyn_cast<ConstantExpr>(getArg1))
+ getArg1 = DecomposeConstantExpr(CEarg, insertBefore);
+ getArg2 = CE->getOperand(1);
+ if (ConstantExpr* CEarg = dyn_cast<ConstantExpr>(getArg2))
+ getArg2 = DecomposeConstantExpr(CEarg, insertBefore);
+ return new ShiftInst (static_cast<Instruction::OtherOps>(CE->getOpcode()),
+ getArg1, getArg2,
+ "constantShr:" + getArg1->getName(), &insertBefore);
+ }
+
+ case Instruction::Shl: {
+ getArg1 = CE->getOperand(0);
+ if (ConstantExpr* CEarg = dyn_cast<ConstantExpr>(getArg1))
+ getArg1 = DecomposeConstantExpr(CEarg, insertBefore);
+ getArg2 = CE->getOperand(1);
+ if (ConstantExpr* CEarg = dyn_cast<ConstantExpr>(getArg2))
+ getArg2 = DecomposeConstantExpr(CEarg, insertBefore);
+ return new ShiftInst (static_cast<Instruction::OtherOps>(CE->getOpcode()),
+ getArg1, getArg2,
+ "constantShl:" + getArg1->getName(), &insertBefore);
+ }
+
default: // must be a binary operator
assert(CE->getOpcode() >= Instruction::BinaryOpsBegin &&
CE->getOpcode() < Instruction::BinaryOpsEnd &&