Changes in directory llvm/lib/ExecutionEngine/Interpreter:
Interpreter.h updated: 1.80 -> 1.81
---
Log message:
Add an inline helper function that masks a GenericValue to a specified
bit width.
---
Diffs of the changes: (+12 -0)
Interpreter.h | 12 ++++++++++++
1 files changed, 12 insertions(+)
Index: llvm/lib/ExecutionEngine/Interpreter/Interpreter.h
diff -u llvm/lib/ExecutionEngine/Interpreter/Interpreter.h:1.80
llvm/lib/ExecutionEngine/Interpreter/Interpreter.h:1.81
--- llvm/lib/ExecutionEngine/Interpreter/Interpreter.h:1.80 Fri Jan 12
01:05:13 2007
+++ llvm/lib/ExecutionEngine/Interpreter/Interpreter.h Wed Jan 17 20:12:10 2007
@@ -231,8 +231,20 @@
GenericValue executeCastOperation(Instruction::CastOps opcode, Value
*SrcVal,
const Type *Ty, ExecutionContext &SF);
void popStackAndReturnValueToCaller(const Type *RetTy, GenericValue Result);
+
};
+inline void maskToBitWidth(GenericValue& GV, unsigned BitWidth) {
+ uint64_t BitMask = (1ull << BitWidth) - 1;
+ if (BitWidth <= 8)
+ GV.Int8Val &= BitMask;
+ else if (BitWidth <= 16)
+ GV.Int16Val &= BitMask;
+ else if (BitWidth <= 32)
+ GV.Int32Val &= BitMask;
+ else
+ GV.Int64Val &= BitMask;
+}
} // End llvm namespace
#endif
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