Import libcompiler_rt 3.9.0, LLVM's replacement for libgcc.

This is the lib/builtin directory of the compiler-rt source tarball.

comments/ok patrick@, ok kettenis@

1 files changed, 46 insertions, 0 deletions

diff --git a/lib/libcompiler_rt/fixdfdi.c b/lib/libcompiler_rt/fixdfdi.c
new file mode 100644
index 00000000000..14283ef42e6
--- /dev/null
+++ b/lib/libcompiler_rt/fixdfdi.c
@@ -0,0 +1,46 @@
+/* ===-- fixdfdi.c - Implement __fixdfdi -----------------------------------===
+ *
+ *                     The LLVM Compiler Infrastructure
+ *
+ * This file is dual licensed under the MIT and the University of Illinois Open
+ * Source Licenses. See LICENSE.TXT for details.
+ *
+ * ===----------------------------------------------------------------------===
+ */
+
+#define DOUBLE_PRECISION
+#include "fp_lib.h"
+ARM_EABI_FNALIAS(d2lz, fixdfdi)
+
+#ifndef __SOFT_FP__
+/* Support for systems that have hardware floating-point; can set the invalid
+ * flag as a side-effect of computation.
+ */
+
+COMPILER_RT_ABI du_int __fixunsdfdi(double a);
+
+COMPILER_RT_ABI di_int
+__fixdfdi(double a)
+{
+    if (a < 0.0) {
+        return -__fixunsdfdi(-a);
+    }
+    return __fixunsdfdi(a);
+}
+
+#else
+/* Support for systems that don't have hardware floating-point; there are no
+ * flags to set, and we don't want to code-gen to an unknown soft-float
+ * implementation.
+ */
+
+typedef di_int fixint_t;
+typedef du_int fixuint_t;
+#include "fp_fixint_impl.inc"
+
+COMPILER_RT_ABI di_int
+__fixdfdi(fp_t a) {
+    return __fixint(a);
+}
+
+#endif