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| author | Reid Spencer <rspencer@reidspencer.com> | 2007-01-18 02:12:10 +0000 |
|---|---|---|
| committer | Reid Spencer <rspencer@reidspencer.com> | 2007-01-18 02:12:10 +0000 |
| commit | 90935f608d0f6ea4bfa3dbd999b2e27063195e30 (patch) | |
| tree | 47e1eb9f1a3852bcc9d32200cbbbf59ba6d401ca /lib/ExecutionEngine/Interpreter | |
| parent | 071b9d5d7cb6dfe511e2b40aa28f6ee045b2a0bd (diff) | |
| download | external_llvm-90935f608d0f6ea4bfa3dbd999b2e27063195e30.zip external_llvm-90935f608d0f6ea4bfa3dbd999b2e27063195e30.tar.gz external_llvm-90935f608d0f6ea4bfa3dbd999b2e27063195e30.tar.bz2 | |
Add an inline helper function that masks a GenericValue to a specified
bit width.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33325 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/ExecutionEngine/Interpreter')
| -rw-r--r-- | lib/ExecutionEngine/Interpreter/Interpreter.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/ExecutionEngine/Interpreter/Interpreter.h b/lib/ExecutionEngine/Interpreter/Interpreter.h index c62249b..3007b0a 100644 --- a/lib/ExecutionEngine/Interpreter/Interpreter.h +++ b/lib/ExecutionEngine/Interpreter/Interpreter.h @@ -231,8 +231,20 @@ private: // Helper functions 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 |