Initial import of compiler-rt.
-
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@74292 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/timing/floatdisf.c b/test/timing/floatdisf.c
new file mode 100644
index 0000000..801ab0a
--- /dev/null
+++ b/test/timing/floatdisf.c
@@ -0,0 +1,47 @@
+#include "timing.h"
+#include <stdio.h>
+
+#define INPUT_TYPE int64_t
+#define INPUT_SIZE 512
+#define FUNCTION_NAME __floatdisf
+
+#ifndef LIBNAME
+#define LIBNAME UNKNOWN
+#endif
+
+#define LIBSTRING LIBSTRINGX(LIBNAME)
+#define LIBSTRINGX(a) LIBSTRINGXX(a)
+#define LIBSTRINGXX(a) #a
+
+float FUNCTION_NAME(INPUT_TYPE x);
+
+int main(int argc, char *argv[]) {
+ INPUT_TYPE input[INPUT_SIZE];
+ int i, j;
+
+ srand(42);
+
+ // Initialize the input array with data of various sizes.
+ for (i=0; i<INPUT_SIZE; ++i)
+ input[i] = (((uint64_t)rand() << 32) | (uint64_t)rand()) >> (rand() & 63);
+
+ double bestTime = __builtin_inf();
+ void *dummyp;
+ for (j=0; j<1024; ++j) {
+
+ uint64_t startTime = mach_absolute_time();
+ for (i=0; i<INPUT_SIZE; ++i)
+ FUNCTION_NAME(input[i]);
+ uint64_t endTime = mach_absolute_time();
+
+ double thisTime = intervalInCycles(startTime, endTime);
+ bestTime = __builtin_fmin(thisTime, bestTime);
+
+ // Move the stack alignment between trials to eliminate (mostly) aliasing effects
+ dummyp = alloca(1);
+ }
+
+ printf("%16s: %f cycles.\n", LIBSTRING, bestTime / (double) INPUT_SIZE);
+
+ return 0;
+}