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Added pragma insertelement.

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This commit is contained in:
Jernej Krempuš
2012-10-02 22:22:53 +02:00
parent 2cf5d8c2a0
commit b798974f3a
4 changed files with 40 additions and 1 deletions
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1
dmd2/idgen.c
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@@ -275,6 +275,7 @@ Msgtable msgtable[] =
{ "Alloca", "alloca" },
{ "Shufflevector", "shufflevector" },
{ "Extractelement", "extractelement" },
{ "Insertelement", "insertelement" },
{ "vastart", "va_start" },
{ "vacopy", "va_copy" },
{ "vaend", "va_end" },

23
gen/pragma.cpp
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@@ -127,6 +127,17 @@ Pragma DtoGetPragma(Scope *sc, PragmaDeclaration *decl, std::string &arg1str)
return LLVMextractelement;
}
// pragma(insertelement) { funcdecl(s) }
else if (ident == Id::Insertelement)
{
if (args && args->dim > 0)
{
error("takes no parameters");
fatal();
}
return LLVMinsertelement;
}
// pragma(va_start) { templdecl(s) }
else if (ident == Id::vastart)
{
@@ -398,6 +409,18 @@ void DtoCheckPragma(PragmaDeclaration *decl, Dsymbol *s,
}
break;
case LLVMinsertelement:
if (FuncDeclaration* fd = s->isFuncDeclaration())
{
fd->llvmInternal = llvm_internal;
}
else
{
error("the '%s' pragma must only be used on function declarations.", ident->toChars());
fatal();
}
break;
case LLVMinline_asm:
if (TemplateDeclaration* td = s->isTemplateDeclaration())
{

1
gen/pragma.h
View File

@@ -16,6 +16,7 @@ enum Pragma
LLVMalloca,
LLVMshufflevector,
LLVMextractelement,
LLVMinsertelement,
LLVMva_start,
LLVMva_copy,
LLVMva_end,

16
gen/toir.cpp
View File

@@ -1015,11 +1015,25 @@ DValue* CallExp::toElem(IRState* p)
error("Function %s was declared with pragma extractelement. Because of that its second argument must be an integer literal.", fndecl->toChars());
fatal();
}
LLConstant* idx = static_cast<IntegerExp*>(arguments->data[1])->toConstElem(p);
LLValue* idx = exp2->toElem(p)->getRVal();
Expression* exp1 = static_cast<Expression*>(arguments->data[0]);
LLValue* vec = exp1->toElem(p)->getRVal();
return new DImValue(type, p->ir->CreateExtractElement(vec, idx));
}
// insertelement
else if(fndecl->llvmInternal == LLVMinsertelement) {
Expression* exp3 = static_cast<Expression*>(arguments->data[2]);
if(exp3->op != TOKint64){
error("Function %s was declared with pragma extractelement. Because of that its second argument must be an integer literal.", fndecl->toChars());
fatal();
}
LLValue* idx = exp3->toElem(p)->getRVal();
Expression* exp1 = static_cast<Expression*>(arguments->data[0]);
LLValue* vec = exp1->toElem(p)->getRVal();
Expression* exp2 = static_cast<Expression*>(arguments->data[1]);
LLValue* scal = exp2->toElem(p)->getRVal();
return new DImValue(type, p->ir->CreateInsertElement(vec, scal, idx));
}
// fence instruction
else if (fndecl->llvmInternal == LLVMfence) {
if (arguments->dim != 1) {