From af259a7f915a41a89edf913806452909cd6cf539 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Sun, 7 Apr 2002 08:10:14 +0000 Subject: Implement constant propogation of multiply and divide instructions!! llvm-svn: 2134 --- llvm/lib/VMCore/ConstantHandling.cpp | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'llvm/lib/VMCore/ConstantHandling.cpp') diff --git a/llvm/lib/VMCore/ConstantHandling.cpp b/llvm/lib/VMCore/ConstantHandling.cpp index 80374f339c5..5a1cb745a2f 100644 --- a/llvm/lib/VMCore/ConstantHandling.cpp +++ b/llvm/lib/VMCore/ConstantHandling.cpp @@ -47,6 +47,10 @@ class TemplateRules : public ConstRules { const Constant *V2) const { return SubClassName::Mul((const ArgType *)V1, (const ArgType *)V2); } + virtual Constant *div(const Constant *V1, + const Constant *V2) const { + return SubClassName::Div((const ArgType *)V1, (const ArgType *)V2); + } virtual ConstantBool *lessthan(const Constant *V1, const Constant *V2) const { @@ -107,6 +111,9 @@ class TemplateRules : public ConstRules { inline static Constant *Mul(const ArgType *V1, const ArgType *V2) { return 0; } + inline static Constant *Div(const ArgType *V1, const ArgType *V2) { + return 0; + } inline static ConstantBool *LessThan(const ArgType *V1, const ArgType *V2) { return 0; } @@ -263,6 +270,13 @@ struct DirectRules return ConstantClass::get(*Ty, Result); } + inline static Constant *Div(const ConstantClass *V1, + const ConstantClass *V2) { + BuiltinType Result = (BuiltinType)V1->getValue() / + (BuiltinType)V2->getValue(); + return ConstantClass::get(*Ty, Result); + } + inline static ConstantBool *LessThan(const ConstantClass *V1, const ConstantClass *V2) { bool Result = (BuiltinType)V1->getValue() < (BuiltinType)V2->getValue(); -- cgit v1.2.3