Fix check-builtins on Windows after alias changes

llvm-svn: 359835

Author: rnk

compiler-rt/lib/builtins/comparedf2.c

@@ -140,3 +140,11 @@ AEABI_RTABI int __aeabi_dcmpun(fp_t a, fp_t b) { return __unorddf2(a, b); }
 COMPILER_RT_ALIAS(__unorddf2, __aeabi_dcmpun)
 #endif
 #endif
+
+#if defined(_WIN32)
+// The alias mechanism doesn't work on Windows, so emit wrapper functions.
+int __eqdf2(fp_t a, fp_t b) { return __ledf2(a, b); }
+int __ltdf2(fp_t a, fp_t b) { return __ledf2(a, b); }
+int __nedf2(fp_t a, fp_t b) { return __ledf2(a, b); }
+int __gtdf2(fp_t a, fp_t b) { return __gedf2(a, b); }
+#endif

compiler-rt/lib/builtins/comparesf2.c

@@ -140,3 +140,11 @@ AEABI_RTABI int __aeabi_fcmpun(fp_t a, fp_t b) { return __unordsf2(a, b); }
 COMPILER_RT_ALIAS(__unordsf2, __aeabi_fcmpun)
 #endif
 #endif
+
+#if defined(_WIN32)
+// The alias mechanism doesn't work on Windows, so emit wrapper functions.
+int __eqsf2(fp_t a, fp_t b) { return __lesf2(a, b); }
+int __ltsf2(fp_t a, fp_t b) { return __lesf2(a, b); }
+int __nesf2(fp_t a, fp_t b) { return __lesf2(a, b); }
+int __gtsf2(fp_t a, fp_t b) { return __gesf2(a, b); }
+#endif

compiler-rt/test/builtins/Unit/compiler_rt_logb_test.c

@@ -35,11 +35,15 @@ double cases[] = {
     -0.0,  0.0,    1,   -2,   2,        -0.5,      0.5,
 };
 
+#ifndef __GLIBC_PREREQ
+#define __GLIBC_PREREQ(x, y) 0
+#endif
+
 int main() {
   // Do not the run the compiler-rt logb test case if using GLIBC version
   // < 2.23. Older versions might not compute to the same value as the
   // compiler-rt value.
-#if !defined(__GLIBC__) || (defined(__GLIBC_PREREQ) && __GLIBC_PREREQ(2, 23))
+#if __GLIBC_PREREQ(2, 23)
   const unsigned N = sizeof(cases) / sizeof(cases[0]);
   unsigned i;
   for (i = 0; i < N; ++i) {