[Sema] Add test for __builtin_fminf errors.

Author: fhahn

clang/test/Sema/overloaded-math-builtins.c

@@ -0,0 +1,21 @@
+// RUN: %clang_cc1 %s -pedantic -verify -triple=x86_64-apple-darwin9
+
+typedef float float4 __attribute__((ext_vector_type(4)));
+
+float test_fminf(float f, int i, int *ptr, float4 v) {
+  float r1 = __builtin_fminf(f, ptr);
+  // expected-error@-1 {{passing 'int *' to parameter of incompatible type 'float'}}
+  float r2 = __builtin_fminf(ptr, f);
+  // expected-error@-1 {{passing 'int *' to parameter of incompatible type 'float'}}
+  float r3 = __builtin_fminf(v, f);
+  // expected-error@-1 {{passing 'float4' (vector of 4 'float' values) to parameter of incompatible type 'float'}}
+  float r4 = __builtin_fminf(f, v);
+  // expected-error@-1 {{passing 'float4' (vector of 4 'float' values) to parameter of incompatible type 'float'}}
+
+
+  int *r5 = __builtin_fminf(f, f);
+  // expected-error@-1 {{initializing 'int *' with an expression of incompatible type 'float'}}
+
+  int *r6 = __builtin_fminf(f, v);
+  // expected-error@-1 {{passing 'float4' (vector of 4 'float' values) to parameter of incompatible type 'float'}}
+}