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Implement codegen for ordered comparison builtins. 

llvm-svn: 45243
This commit is contained in:
Chris Lattner 2007-12-20 00:44:32 +00:00
parent 5f1470f03a
commit 6c9ffe9529
2 changed files with 37 additions and 2 deletions
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36
clang/CodeGen/CGBuiltin.cpp
View File

@ -166,6 +166,42 @@ RValue CodeGenFunction::EmitBuiltinExpr(unsigned BuiltinID, const CallExpr *E) {
APFloat f(APFloat::IEEEdouble, APFloat::fcInfinity, false);
return RValue::get(ConstantFP::get(llvm::Type::DoubleTy, f));
}
case Builtin::BI__builtin_isgreater:
case Builtin::BI__builtin_isgreaterequal:
case Builtin::BI__builtin_isless:
case Builtin::BI__builtin_islessequal:
case Builtin::BI__builtin_islessgreater:
case Builtin::BI__builtin_isunordered: {
// Ordered comparisons: we know the arguments to these are matching scalar
// floating point values.
Value *LHS = EmitScalarExpr(E->getArg(0));
Value *RHS = EmitScalarExpr(E->getArg(1));
switch (BuiltinID) {
default: assert(0 && "Unknown ordered comparison");
case Builtin::BI__builtin_isgreater:
LHS = Builder.CreateFCmpOGT(LHS, RHS, "cmp");
break;
case Builtin::BI__builtin_isgreaterequal:
LHS = Builder.CreateFCmpOGE(LHS, RHS, "cmp");
break;
case Builtin::BI__builtin_isless:
LHS = Builder.CreateFCmpOLT(LHS, RHS, "cmp");
break;
case Builtin::BI__builtin_islessequal:
LHS = Builder.CreateFCmpOLE(LHS, RHS, "cmp");
break;
case Builtin::BI__builtin_islessgreater:
LHS = Builder.CreateFCmpONE(LHS, RHS, "cmp");
break;
case Builtin::BI__builtin_isunordered:
LHS = Builder.CreateFCmpUNO(LHS, RHS, "cmp");
break;
}
// ZExt bool to int type.
return RValue::get(Builder.CreateZExt(LHS, ConvertType(E->getType()),
"tmp"));
}
}
return RValue::get(0);
}

3
clang/Sema/SemaExpr.cpp
View File

@ -720,8 +720,7 @@ ActOnInitList(SourceLocation LBraceLoc, ExprTy **initlist, unsigned NumInit,
return e;
}
bool Sema::CheckVectorCast(SourceRange R, QualType VectorTy, QualType Ty)
{
bool Sema::CheckVectorCast(SourceRange R, QualType VectorTy, QualType Ty) {
assert(VectorTy->isVectorType() && "Not a vector type!");
if (Ty->isVectorType() || Ty->isIntegerType()) {