Initial import of compiler-rt.

 -


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@74292 91177308-0d34-0410-b5e6-96231b3b80d8

17 files changed, 804 insertions, 0 deletions

diff --git a/test/timing/ashldi3.c b/test/timing/ashldi3.c
new file mode 100644
index 000000000..0d7378d41
--- /dev/null
+++ b/test/timing/ashldi3.c
@@ -0,0 +1,49 @@
+#include "timing.h"
+#include <stdio.h>
+
+#define INPUT_TYPE int
+#define INPUT_SIZE 512
+#define FUNCTION_NAME __ashldi3
+
+#ifndef LIBNAME
+#define LIBNAME UNKNOWN
+#endif
+
+#define LIBSTRING		LIBSTRINGX(LIBNAME)
+#define LIBSTRINGX(a)	LIBSTRINGXX(a)
+#define LIBSTRINGXX(a)	#a
+
+int64_t FUNCTION_NAME(int64_t input, INPUT_TYPE count);
+
+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] = rand() & 0x3f;
+	
+	int64_t fixedInput = INT64_C(0x1234567890ABCDEF);
+	
+	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(fixedInput, 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;
+}
diff --git a/test/timing/ashrdi3.c b/test/timing/ashrdi3.c
new file mode 100644
index 000000000..84e11f7fe
--- /dev/null
+++ b/test/timing/ashrdi3.c
@@ -0,0 +1,49 @@
+#include "timing.h"
+#include <stdio.h>
+
+#define INPUT_TYPE int
+#define INPUT_SIZE 512
+#define FUNCTION_NAME __ashrdi3
+
+#ifndef LIBNAME
+#define LIBNAME UNKNOWN
+#endif
+
+#define LIBSTRING		LIBSTRINGX(LIBNAME)
+#define LIBSTRINGX(a)	LIBSTRINGXX(a)
+#define LIBSTRINGXX(a)	#a
+
+int64_t FUNCTION_NAME(int64_t input, INPUT_TYPE count);
+
+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] = rand() & 0x3f;
+	
+	int64_t fixedInput = INT64_C(0x1234567890ABCDEF);
+	
+	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(fixedInput, 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;
+}
diff --git a/test/timing/divdi3.c b/test/timing/divdi3.c
new file mode 100644
index 000000000..37937aab6
--- /dev/null
+++ b/test/timing/divdi3.c
@@ -0,0 +1,52 @@
+#include "timing.h"
+#include <stdio.h>
+
+#define INPUT_TYPE int64_t
+#define INPUT_SIZE 256
+#define FUNCTION_NAME __divdi3
+
+#ifndef LIBNAME
+#define LIBNAME UNKNOWN
+#endif
+
+#define LIBSTRING		LIBSTRINGX(LIBNAME)
+#define LIBSTRINGX(a)	LIBSTRINGXX(a)
+#define LIBSTRINGXX(a)	#a
+
+INPUT_TYPE FUNCTION_NAME(INPUT_TYPE input1, INPUT_TYPE input2);
+
+int main(int argc, char *argv[]) {
+	INPUT_TYPE input1[INPUT_SIZE];
+	INPUT_TYPE input2[INPUT_SIZE];
+	int i, j;
+	
+	srand(42);
+	
+	// Initialize the input array with data of various sizes.
+	for (i=0; i<INPUT_SIZE; ++i) {
+		input1[i] = (((int64_t)rand() << 36) | (uint64_t)rand()) >> (rand() & 63);
+		input2[i] = ((((int64_t)rand() << 36) | (uint64_t)rand()) >> (rand() & 63)) + 1LL;
+	}
+	
+	int64_t fixedInput = INT64_C(0x1234567890ABCDEF);
+	
+	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(input1[i], input2[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;
+}
diff --git a/test/timing/floatdidf.c b/test/timing/floatdidf.c
new file mode 100644
index 000000000..2c970d4df
--- /dev/null
+++ b/test/timing/floatdidf.c
@@ -0,0 +1,47 @@
+#include "timing.h"
+#include <stdio.h>
+
+#define INPUT_TYPE int64_t
+#define INPUT_SIZE 512
+#define FUNCTION_NAME __floatdidf
+
+#ifndef LIBNAME
+#define LIBNAME UNKNOWN
+#endif
+
+#define LIBSTRING		LIBSTRINGX(LIBNAME)
+#define LIBSTRINGX(a)	LIBSTRINGXX(a)
+#define LIBSTRINGXX(a)	#a
+
+double 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;
+}
diff --git a/test/timing/floatdisf.c b/test/timing/floatdisf.c
new file mode 100644
index 000000000..801ab0aa2
--- /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;
+}
diff --git a/test/timing/floatdixf.c b/test/timing/floatdixf.c
new file mode 100644
index 000000000..b646e3c1b
--- /dev/null
+++ b/test/timing/floatdixf.c
@@ -0,0 +1,47 @@
+#include "timing.h"
+#include <stdio.h>
+
+#define INPUT_TYPE int64_t
+#define INPUT_SIZE 512
+#define FUNCTION_NAME __floatdixf
+
+#ifndef LIBNAME
+#define LIBNAME UNKNOWN
+#endif
+
+#define LIBSTRING		LIBSTRINGX(LIBNAME)
+#define LIBSTRINGX(a)	LIBSTRINGXX(a)
+#define LIBSTRINGXX(a)	#a
+
+long double 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;
+}
diff --git a/test/timing/floatundidf.c b/test/timing/floatundidf.c
new file mode 100644
index 000000000..25c02bd2e
--- /dev/null
+++ b/test/timing/floatundidf.c
@@ -0,0 +1,44 @@
+#include "timing.h"
+#include <stdio.h>
+
+#ifndef LIBNAME
+#define LIBNAME UNKNOWN
+#endif
+
+#define LIBSTRING		LIBSTRINGX(LIBNAME)
+#define LIBSTRINGX(a)	LIBSTRINGXX(a)
+#define LIBSTRINGXX(a)	#a
+
+double __floatundidf(uint64_t x);
+
+int main(int argc, char *argv[]) {
+#define INPUT_SIZE 512
+	uint64_t 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)
+			__floatundidf(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;
+}
diff --git a/test/timing/floatundisf.c b/test/timing/floatundisf.c
new file mode 100644
index 000000000..ec8f3beb9
--- /dev/null
+++ b/test/timing/floatundisf.c
@@ -0,0 +1,47 @@
+#include "timing.h"
+#include <stdio.h>
+
+#define INPUT_TYPE uint64_t
+#define INPUT_SIZE 512
+#define FUNCTION_NAME __floatundisf
+
+#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;
+}
diff --git a/test/timing/floatundixf.c b/test/timing/floatundixf.c
new file mode 100644
index 000000000..46733eb26
--- /dev/null
+++ b/test/timing/floatundixf.c
@@ -0,0 +1,47 @@
+#include "timing.h"
+#include <stdio.h>
+
+#define INPUT_TYPE uint64_t
+#define INPUT_SIZE 512
+#define FUNCTION_NAME __floatundixf
+
+#ifndef LIBNAME
+#define LIBNAME UNKNOWN
+#endif
+
+#define LIBSTRING		LIBSTRINGX(LIBNAME)
+#define LIBSTRINGX(a)	LIBSTRINGXX(a)
+#define LIBSTRINGXX(a)	#a
+
+long double 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;
+}
diff --git a/test/timing/lshrdi3.c b/test/timing/lshrdi3.c
new file mode 100644
index 000000000..b474cf3e0
--- /dev/null
+++ b/test/timing/lshrdi3.c
@@ -0,0 +1,49 @@
+#include "timing.h"
+#include <stdio.h>
+
+#define INPUT_TYPE int
+#define INPUT_SIZE 512
+#define FUNCTION_NAME __lshrdi3
+
+#ifndef LIBNAME
+#define LIBNAME UNKNOWN
+#endif
+
+#define LIBSTRING		LIBSTRINGX(LIBNAME)
+#define LIBSTRINGX(a)	LIBSTRINGXX(a)
+#define LIBSTRINGXX(a)	#a
+
+int64_t FUNCTION_NAME(int64_t input, INPUT_TYPE count);
+
+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] = rand() & 0x3f;
+	
+	int64_t fixedInput = INT64_C(0x1234567890ABCDEF);
+	
+	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(fixedInput, 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;
+}
diff --git a/test/timing/moddi3.c b/test/timing/moddi3.c
new file mode 100644
index 000000000..83e2441dc
--- /dev/null
+++ b/test/timing/moddi3.c
@@ -0,0 +1,52 @@
+#include "timing.h"
+#include <stdio.h>
+
+#define INPUT_TYPE int64_t
+#define INPUT_SIZE 256
+#define FUNCTION_NAME __moddi3
+
+#ifndef LIBNAME
+#define LIBNAME UNKNOWN
+#endif
+
+#define LIBSTRING		LIBSTRINGX(LIBNAME)
+#define LIBSTRINGX(a)	LIBSTRINGXX(a)
+#define LIBSTRINGXX(a)	#a
+
+INPUT_TYPE FUNCTION_NAME(INPUT_TYPE input1, INPUT_TYPE input2);
+
+int main(int argc, char *argv[]) {
+	INPUT_TYPE input1[INPUT_SIZE];
+	INPUT_TYPE input2[INPUT_SIZE];
+	int i, j;
+	
+	srand(42);
+	
+	// Initialize the input array with data of various sizes.
+	for (i=0; i<INPUT_SIZE; ++i) {
+		input1[i] = (((int64_t)rand() << 36) | (uint64_t)rand()) >> (rand() & 63);
+		input2[i] = ((((int64_t)rand() << 36) | (uint64_t)rand()) >> (rand() & 63)) + 1LL;
+	}
+	
+	int64_t fixedInput = INT64_C(0x1234567890ABCDEF);
+	
+	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(input1[i], input2[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;
+}
diff --git a/test/timing/muldi3.c b/test/timing/muldi3.c
new file mode 100644
index 000000000..3ba3af245
--- /dev/null
+++ b/test/timing/muldi3.c
@@ -0,0 +1,52 @@
+#include "timing.h"
+#include <stdio.h>
+
+#define INPUT_TYPE int64_t
+#define INPUT_SIZE 256
+#define FUNCTION_NAME __muldi3
+
+#ifndef LIBNAME
+#define LIBNAME UNKNOWN
+#endif
+
+#define LIBSTRING		LIBSTRINGX(LIBNAME)
+#define LIBSTRINGX(a)	LIBSTRINGXX(a)
+#define LIBSTRINGXX(a)	#a
+
+INPUT_TYPE FUNCTION_NAME(INPUT_TYPE input1, INPUT_TYPE input2);
+
+int main(int argc, char *argv[]) {
+	INPUT_TYPE input1[INPUT_SIZE];
+	INPUT_TYPE input2[INPUT_SIZE];
+	int i, j;
+	
+	srand(42);
+	
+	// Initialize the input array with data of various sizes.
+	for (i=0; i<INPUT_SIZE; ++i) {
+		input1[i] = (((int64_t)rand() << 36) | (uint64_t)rand()) >> (rand() & 63);
+		input2[i] = (((int64_t)rand() << 36) | (uint64_t)rand()) >> (rand() & 63);
+	}
+	
+	int64_t fixedInput = INT64_C(0x1234567890ABCDEF);
+	
+	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(input1[i], input2[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;
+}
diff --git a/test/timing/negdi2.c b/test/timing/negdi2.c
new file mode 100644
index 000000000..2668eb1e8
--- /dev/null
+++ b/test/timing/negdi2.c
@@ -0,0 +1,50 @@
+#include "timing.h"
+#include <stdio.h>
+
+#define INPUT_TYPE int64_t
+#define INPUT_SIZE 256
+#define FUNCTION_NAME __negdi2
+
+#ifndef LIBNAME
+#define LIBNAME UNKNOWN
+#endif
+
+#define LIBSTRING		LIBSTRINGX(LIBNAME)
+#define LIBSTRINGX(a)	LIBSTRINGXX(a)
+#define LIBSTRINGXX(a)	#a
+
+INPUT_TYPE FUNCTION_NAME(INPUT_TYPE input);
+
+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] = (((int64_t)rand() << 36) | (uint64_t)rand()) >> (rand() & 63);
+	}
+	
+	int64_t fixedInput = INT64_C(0x1234567890ABCDEF);
+	
+	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;
+}
diff --git a/test/timing/time b/test/timing/time
new file mode 100755
index 000000000..af14e5e6a
--- /dev/null
+++ b/test/timing/time
@@ -0,0 +1,40 @@
+#!/bin/sh
+
+function test () {
+    arch=$1
+    file=$2
+    name=$3
+    ldflags=$4
+
+    if gcc -arch $arch -Os $file $ldflags -DLIBNAME=$name
+    then
+	if ./a.out
+	then
+	    rm ./a.out
+	else
+	    echo "fail"
+	fi
+    else
+	echo "$FILE failed to compile"
+    fi
+}
+
+INSTALLED=/usr/local/lib/system/libcompiler_rt.a
+
+for ARCH in i386 x86_64; do
+	for FILE in $(ls *.c); do
+		
+		echo "Timing $FILE for $ARCH"
+
+		test $ARCH $FILE libgcc ""
+                test $ARCH $FILE untuned ../../Release/libcompiler_rt.Generic.a
+                test $ARCH $FILE tuned ../../Release/libcompiler_rt.Optimized.a
+                if [ -f "$INSTALLED" ]; then
+                    test $ARCH $FILE installed $INSTALLED
+		fi
+
+		echo " "
+		
+	done
+done
+exit
diff --git a/test/timing/timing.h b/test/timing/timing.h
new file mode 100644
index 000000000..bb6c41eb2
--- /dev/null
+++ b/test/timing/timing.h
@@ -0,0 +1,28 @@
+#include <mach/mach_time.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+double intervalInCycles( uint64_t startTime, uint64_t endTime )
+{
+	uint64_t rawTime = endTime - startTime;
+	static double conversion = 0.0;
+	
+	if( 0.0 == conversion )
+	{
+		mach_timebase_info_data_t	info;
+		kern_return_t err = mach_timebase_info( &info );
+		if( 0 != err )
+			return 0;
+		
+		uint64_t freq = 0;
+		size_t freqSize = sizeof( freq );
+		int err2 = sysctlbyname( "hw.cpufrequency", &freq, &freqSize, NULL, 0L );
+		if( 0 != err2 )
+			return 0;
+		
+		conversion = (double) freq * (1e-9 * (double) info.numer / (double) info.denom);
+	}
+	
+	return (double) rawTime * conversion;
+}
+
diff --git a/test/timing/udivdi3.c b/test/timing/udivdi3.c
new file mode 100644
index 000000000..9c6a7e8cc
--- /dev/null
+++ b/test/timing/udivdi3.c
@@ -0,0 +1,52 @@
+#include "timing.h"
+#include <stdio.h>
+
+#define INPUT_TYPE uint64_t
+#define INPUT_SIZE 256
+#define FUNCTION_NAME __udivdi3
+
+#ifndef LIBNAME
+#define LIBNAME UNKNOWN
+#endif
+
+#define LIBSTRING		LIBSTRINGX(LIBNAME)
+#define LIBSTRINGX(a)	LIBSTRINGXX(a)
+#define LIBSTRINGXX(a)	#a
+
+INPUT_TYPE FUNCTION_NAME(INPUT_TYPE input1, INPUT_TYPE input2);
+
+int main(int argc, char *argv[]) {
+	INPUT_TYPE input1[INPUT_SIZE];
+	INPUT_TYPE input2[INPUT_SIZE];
+	int i, j;
+	
+	srand(42);
+	
+	// Initialize the input array with data of various sizes.
+	for (i=0; i<INPUT_SIZE; ++i) {
+		input1[i] = (((uint64_t)rand() << 36) | (uint64_t)rand()) >> (rand() & 63);
+		input2[i] = ((((uint64_t)rand() << 36) | (uint64_t)rand()) >> (rand() & 63)) + 1LL;
+	}
+	
+	int64_t fixedInput = INT64_C(0x1234567890ABCDEF);
+	
+	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(input1[i], input2[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;
+}
diff --git a/test/timing/umoddi3.c b/test/timing/umoddi3.c
new file mode 100644
index 000000000..a81c46e52
--- /dev/null
+++ b/test/timing/umoddi3.c
@@ -0,0 +1,52 @@
+#include "timing.h"
+#include <stdio.h>
+
+#define INPUT_TYPE uint64_t
+#define INPUT_SIZE 256
+#define FUNCTION_NAME __umoddi3
+
+#ifndef LIBNAME
+#define LIBNAME UNKNOWN
+#endif
+
+#define LIBSTRING		LIBSTRINGX(LIBNAME)
+#define LIBSTRINGX(a)	LIBSTRINGXX(a)
+#define LIBSTRINGXX(a)	#a
+
+INPUT_TYPE FUNCTION_NAME(INPUT_TYPE input1, INPUT_TYPE input2);
+
+int main(int argc, char *argv[]) {
+	INPUT_TYPE input1[INPUT_SIZE];
+	INPUT_TYPE input2[INPUT_SIZE];
+	int i, j;
+	
+	srand(42);
+	
+	// Initialize the input array with data of various sizes.
+	for (i=0; i<INPUT_SIZE; ++i) {
+		input1[i] = (((uint64_t)rand() << 36) | (uint64_t)rand()) >> (rand() & 63);
+		input2[i] = ((((uint64_t)rand() << 36) | (uint64_t)rand()) >> (rand() & 63)) + 1LL;
+	}
+	
+	int64_t fixedInput = INT64_C(0x1234567890ABCDEF);
+	
+	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(input1[i], input2[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;
+}