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irgen: inline code for several of complex builtin 

calls. // rdar://8315199

llvm-svn: 161891
This commit is contained in:
Fariborz Jahanian 2012-08-14 20:09:28 +00:00
parent c97a6bbfd8
commit 1ac111989d
2 changed files with 100 additions and 0 deletions
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29
clang/lib/CodeGen/CGBuiltin.cpp
View File

@ -229,6 +229,35 @@ RValue CodeGenFunction::EmitBuiltinExpr(const FunctionDecl *FD,
return RValue::get(Result);
}
case Builtin::BI__builtin_conj:
case Builtin::BI__builtin_conjf:
case Builtin::BI__builtin_conjl: {
ComplexPairTy ComplexVal = EmitComplexExpr(E->getArg(0));
Value *Real = ComplexVal.first;
Value *Imag = ComplexVal.second;
Value *Zero =
Imag->getType()->isFPOrFPVectorTy()
? llvm::ConstantFP::getZeroValueForNegation(Imag->getType())
: llvm::Constant::getNullValue(Imag->getType());
Imag = Builder.CreateFSub(Zero, Imag, "sub");
return RValue::getComplex(std::make_pair(Real, Imag));
}
case Builtin::BI__builtin_creal:
case Builtin::BI__builtin_crealf:
case Builtin::BI__builtin_creall: {
ComplexPairTy ComplexVal = EmitComplexExpr(E->getArg(0));
return RValue::get(ComplexVal.first);
}
case Builtin::BI__builtin_cimag:
case Builtin::BI__builtin_cimagf:
case Builtin::BI__builtin_cimagl: {
ComplexPairTy ComplexVal = EmitComplexExpr(E->getArg(0));
return RValue::get(ComplexVal.second);
}
case Builtin::BI__builtin_ctzs:
case Builtin::BI__builtin_ctz:
case Builtin::BI__builtin_ctzl:

71
clang/test/CodeGen/complex-builtints.c Normal file
View File

@ -0,0 +1,71 @@
// RUN: %clang_cc1 %s -O1 -emit-llvm -o - | FileCheck %s
// rdar://8315199
/* Test for builtin conj, creal, cimag. */
/* Origin: Joseph Myers <jsm28@cam.ac.uk> */
extern float _Complex conjf (float _Complex);
extern double _Complex conj (double _Complex);
extern long double _Complex conjl (long double _Complex);
extern float crealf (float _Complex);
extern double creal (double _Complex);
extern long double creall (long double _Complex);
extern float cimagf (float _Complex);
extern double cimag (double _Complex);
extern long double cimagl (long double _Complex);
extern void abort (void);
extern void link_error (void);
int
main ()
{
/* For each type, test both runtime and compile time (constant folding)
optimization. */
volatile float _Complex fc = 1.0F + 2.0iF;
volatile double _Complex dc = 1.0 + 2.0i;
volatile long double _Complex ldc = 1.0L + 2.0iL;
/* Test floats. */
if (__builtin_conjf (fc) != 1.0F - 2.0iF)
abort ();
if (__builtin_conjf (1.0F + 2.0iF) != 1.0F - 2.0iF)
link_error ();
if (__builtin_crealf (fc) != 1.0F)
abort ();
if (__builtin_crealf (1.0F + 2.0iF) != 1.0F)
link_error ();
if (__builtin_cimagf (fc) != 2.0F)
abort ();
if (__builtin_cimagf (1.0F + 2.0iF) != 2.0F)
link_error ();
/* Test doubles. */
if (__builtin_conj (dc) != 1.0 - 2.0i)
abort ();
if (__builtin_conj (1.0 + 2.0i) != 1.0 - 2.0i)
link_error ();
if (__builtin_creal (dc) != 1.0)
abort ();
if (__builtin_creal (1.0 + 2.0i) != 1.0)
link_error ();
if (__builtin_cimag (dc) != 2.0)
abort ();
if (__builtin_cimag (1.0 + 2.0i) != 2.0)
link_error ();
/* Test long doubles. */
if (__builtin_conjl (ldc) != 1.0L - 2.0iL)
abort ();
if (__builtin_conjl (1.0L + 2.0iL) != 1.0L - 2.0iL)
link_error ();
if (__builtin_creall (ldc) != 1.0L)
abort ();
if (__builtin_creall (1.0L + 2.0iL) != 1.0L)
link_error ();
if (__builtin_cimagl (ldc) != 2.0L)
abort ();
if (__builtin_cimagl (1.0L + 2.0iL) != 2.0L)
link_error ();
}
// CHECK-NOT: link_error