From 3ccd0fd7568ab3f671c00cc2b7defc616d9d213a Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Wed, 13 Aug 2003 15:52:25 +0000 Subject: [PATCH] Implement constant folding of casts from boolean constants to other values git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7812 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/VMCore/ConstantFold.cpp | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/lib/VMCore/ConstantFold.cpp b/lib/VMCore/ConstantFold.cpp index 0edf6a76a62..e8dd243c159 100644 --- a/lib/VMCore/ConstantFold.cpp +++ b/lib/VMCore/ConstantFold.cpp @@ -344,6 +344,25 @@ struct BoolRules : public TemplateRules { static Constant *Xor(const ConstantBool *V1, const ConstantBool *V2) { return ConstantBool::get(V1->getValue() ^ V2->getValue()); } + + // Casting operators. ick +#define DEF_CAST(TYPE, CLASS, CTYPE) \ + static CLASS *CastTo##TYPE (const ConstantBool *V) { \ + return CLASS::get(Type::TYPE##Ty, (CTYPE)(bool)V->getValue()); \ + } + + DEF_CAST(Bool , ConstantBool, bool) + DEF_CAST(SByte , ConstantSInt, signed char) + DEF_CAST(UByte , ConstantUInt, unsigned char) + DEF_CAST(Short , ConstantSInt, signed short) + DEF_CAST(UShort, ConstantUInt, unsigned short) + DEF_CAST(Int , ConstantSInt, signed int) + DEF_CAST(UInt , ConstantUInt, unsigned int) + DEF_CAST(Long , ConstantSInt, int64_t) + DEF_CAST(ULong , ConstantUInt, uint64_t) + DEF_CAST(Float , ConstantFP , float) + DEF_CAST(Double, ConstantFP , double) +#undef DEF_CAST };