clang/test/Sema/arithmetic-fence-builtin.c

   1 // RUN: %clang_cc1 -triple i386-pc-linux-gnu -emit-llvm -o - -verify -x c++ %s
   2 // RUN: %clang_cc1 -triple ppc64le -DPPC     -emit-llvm -o - -verify -x c++ %s
   3 // RUN: not %clang_cc1 -triple ppc64le -DPPC     -emit-llvm -o - -x c++ %s \
   4 // RUN:            -fprotect-parens 2>&1 | FileCheck -check-prefix=PPC %s
   5 // RUN: %clang_cc1 -triple spir64 -emit-llvm -o - -verify -x c++ %s
   6 #ifndef PPC
   7 int v;
   8 template <typename T> T addT(T a, T b) {
   9   T *q = __arithmetic_fence(&a);
  10   // expected-error@-1 {{invalid operand of type 'float *' where floating, complex or a vector of such types is required}}
  11   // expected-error@-2 {{invalid operand of type 'int *' where floating, complex or a vector of such types is required}}
  12   return __arithmetic_fence(a + b);
  13   // expected-error@-1 {{invalid operand of type 'int' where floating, complex or a vector of such types is required}}
  14 }
  15 int addit(int a, int b) {
  16   float x, y;
  17   typedef struct {
  18     int a, b;
  19   } stype;
  20   stype s;
  21   s = __arithmetic_fence(s);    // expected-error {{invalid operand of type 'stype' where floating, complex or a vector of such types is required}}
  22   x = __arithmetic_fence();     // expected-error {{too few arguments to function call, expected 1, have 0}}
  23   x = __arithmetic_fence(x, y); // expected-error {{too many arguments to function call, expected 1, have 2}}
  24   // Complex is supported.
  25   _Complex double cd, cd1;
  26   cd = __arithmetic_fence(cd1);
  27   // Vector is supported.
  28   typedef float __v4hi __attribute__((__vector_size__(8)));
  29   __v4hi vec1, vec2;
  30   vec1 = __arithmetic_fence(vec2);
  31
  32   v = __arithmetic_fence(a + b); // expected-error {{invalid operand of type 'int' where floating, complex or a vector of such types is required}}
  33   float f = addT<float>(a, b);   // expected-note {{in instantiation of function template specialization 'addT<float>' requested here}}
  34   int i = addT<int>(1, 2);       // expected-note {{in instantiation of function template specialization 'addT<int>' requested here}}
  35   constexpr float d = 1.0 + 2.0;
  36   constexpr float c = __arithmetic_fence(1.0 + 2.0);
  37   constexpr float e = __arithmetic_fence(d);
  38   return 0;
  39 }
  40 bool func(float f1, float f2, float f3) {
  41   return (f1 == f2 && f1 == f3) || f2 == f3; // Should not warn here
  42 }
  43 static_assert( __arithmetic_fence(1.0 + 2.0), "message" );
  44 #else
  45 float addit(float a, float b) {
  46   return __arithmetic_fence(a+b); // expected-error {{builtin is not supported on this target}}
  47 }
  48 #endif
  49 //PPC: error: option '-fprotect-parens' cannot be specified on this target