1 files changed, 77 insertions, 0 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/builtins/comparedf2.c b/contrib/llvm-project/compiler-rt/lib/builtins/comparedf2.c
new file mode 100644
index 000000000000..e1fc12c54d48
--- /dev/null
+++ b/contrib/llvm-project/compiler-rt/lib/builtins/comparedf2.c
@@ -0,0 +1,77 @@
+//===-- lib/comparedf2.c - Double-precision comparisons -----------*- C -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// // This file implements the following soft-float comparison routines:
+//
+//   __eqdf2   __gedf2   __unorddf2
+//   __ledf2   __gtdf2
+//   __ltdf2
+//   __nedf2
+//
+// The semantics of the routines grouped in each column are identical, so there
+// is a single implementation for each, and wrappers to provide the other names.
+//
+// The main routines behave as follows:
+//
+//   __ledf2(a,b) returns -1 if a < b
+//                         0 if a == b
+//                         1 if a > b
+//                         1 if either a or b is NaN
+//
+//   __gedf2(a,b) returns -1 if a < b
+//                         0 if a == b
+//                         1 if a > b
+//                        -1 if either a or b is NaN
+//
+//   __unorddf2(a,b) returns 0 if both a and b are numbers
+//                           1 if either a or b is NaN
+//
+// Note that __ledf2( ) and __gedf2( ) are identical except in their handling of
+// NaN values.
+//
+//===----------------------------------------------------------------------===//
+
+#define DOUBLE_PRECISION
+#include "fp_lib.h"
+
+#include "fp_compare_impl.inc"
+
+COMPILER_RT_ABI CMP_RESULT __ledf2(fp_t a, fp_t b) { return __leXf2__(a, b); }
+
+#if defined(__ELF__)
+// Alias for libgcc compatibility
+COMPILER_RT_ALIAS(__ledf2, __cmpdf2)
+#endif
+COMPILER_RT_ALIAS(__ledf2, __eqdf2)
+COMPILER_RT_ALIAS(__ledf2, __ltdf2)
+COMPILER_RT_ALIAS(__ledf2, __nedf2)
+
+COMPILER_RT_ABI CMP_RESULT __gedf2(fp_t a, fp_t b) { return __geXf2__(a, b); }
+
+COMPILER_RT_ALIAS(__gedf2, __gtdf2)
+
+COMPILER_RT_ABI CMP_RESULT __unorddf2(fp_t a, fp_t b) {
+  return __unordXf2__(a, b);
+}
+
+#if defined(__ARM_EABI__)
+#if defined(COMPILER_RT_ARMHF_TARGET)
+AEABI_RTABI int __aeabi_dcmpun(fp_t a, fp_t b) { return __unorddf2(a, b); }
+#else
+COMPILER_RT_ALIAS(__unorddf2, __aeabi_dcmpun)
+#endif
+#endif
+
+#if defined(_WIN32) && !defined(__MINGW32__)
+// The alias mechanism doesn't work on Windows except for MinGW, 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