[cfe-commits] r161891 - in /cfe/trunk: lib/CodeGen/CGBuiltin.cpp test/CodeGen/complex-builtints.c

[Fariborz Jahanian]

Author: fjahanian
Date: Tue Aug 14 15:09:28 2012
New Revision: 161891

URL: http://llvm.org/viewvc/llvm-project?rev=161891&view=rev
Log:
irgen: inline code for several of complex builtin
calls. // rdar://8315199

Added:
    cfe/trunk/test/CodeGen/complex-builtints.c
Modified:
    cfe/trunk/lib/CodeGen/CGBuiltin.cpp

Modified: cfe/trunk/lib/CodeGen/CGBuiltin.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGBuiltin.cpp?rev=161891&r1=161890&r2=161891&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGBuiltin.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGBuiltin.cpp Tue Aug 14 15:09:28 2012
@@ -229,6 +229,35 @@
 
     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:

Added: cfe/trunk/test/CodeGen/complex-builtints.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/complex-builtints.c?rev=161891&view=auto
==============================================================================
--- cfe/trunk/test/CodeGen/complex-builtints.c (added)
+++ cfe/trunk/test/CodeGen/complex-builtints.c Tue Aug 14 15:09:28 2012
@@ -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 at 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