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Updated ABI handling to be more flexible with regard to reusing lvalues and allocating fewer temporaries.
author Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
date Wed, 04 Mar 2009 17:24:25 +0100
parents 9167d492cbc2
children 6bb04dbee21f
comparison
equal deleted inserted replaced
1041:9dca7182aa75 1042:45af482e3832
3 3
4 #include <vector> 4 #include <vector>
5 5
6 struct Type; 6 struct Type;
7 struct IrFuncTyArg; 7 struct IrFuncTyArg;
8 struct DValue;
9
8 namespace llvm 10 namespace llvm
9 { 11 {
10 class Type; 12 class Type;
11 class Value; 13 class Value;
12 } 14 }
13 15
14 // return rewrite rule 16 // return rewrite rule
15 struct ABIRewrite 17 struct ABIRewrite
16 { 18 {
17 // get original value from rewritten one 19 /// get a rewritten value back to its original form
18 virtual LLValue* get(Type* dty, LLValue* v) = 0; 20 virtual LLValue* get(Type* dty, DValue* v) = 0;
19 21
20 // rewrite original value 22 /// get a rewritten value back to its original form and store result in provided lvalue
21 virtual LLValue* put(Type* dty, LLValue* v) = 0; 23 /// this one is optional and defaults to calling the one above
24 virtual void getL(Type* dty, DValue* v, llvm::Value* lval);
22 25
23 // returns target type of this rewrite 26 /// put out rewritten value
27 virtual LLValue* put(Type* dty, DValue* v) = 0;
28
29 /// should return the transformed type for this rewrite
24 virtual const LLType* type(Type* dty, const LLType* t) = 0; 30 virtual const LLType* type(Type* dty, const LLType* t) = 0;
25 }; 31 };
26 32
27 // interface called by codegen 33 // interface called by codegen
28 struct TargetABI 34 struct TargetABI