source: doc/theses/andrew_beach_MMath/code/resume-finally.cfa @ b0b89a8

ADTast-experimentalenumforall-pointer-decayjacob/cs343-translationnew-ast-unique-exprpthread-emulationqualifiedEnum
Last change on this file since b0b89a8 was 54651005, checked in by Andrew Beach <ajbeach@…>, 3 years ago

Added asm statements to the exception benchmarks to prevent unwanted optimizations.

  • Property mode set to 100644
File size: 911 bytes
Line 
1// Throw Across Finally
2#include <clock.hfa>
3#include <exception.hfa>
4#include <fstream.hfa>
5#include <stdlib.hfa>
6
7EHM_EXCEPTION(empty_exception)();
8
9EHM_VIRTUAL_TABLE(empty_exception, empty_vt);
10
11void unwind_finally(unsigned int frames) {
12        if (frames) {
13                try {
14                        unwind_finally(frames - 1);
15                } finally {
16                        asm volatile ("# finally block");
17                }
18        } else {
19                throwResume (empty_exception){&empty_vt};
20        }
21}
22
23int main(int argc, char * argv[]) {
24        unsigned int times = 1;
25        unsigned int total_frames = 1;
26        if (1 < argc) {
27                times = strtol(argv[1], 0p, 10);
28        }
29        if (2 < argc) {
30                total_frames = strtol(argv[2], 0p, 10);
31        }
32
33        Time start_time = timeHiRes();
34        for (int count = 0 ; count < times ; ++count) {
35                try {
36                        unwind_finally(total_frames);
37                } catchResume (empty_exception *) {
38                        asm volatile ("# fixup block");
39                }
40        }
41        Time end_time = timeHiRes();
42        sout | "Run-Time (ns): " | (end_time - start_time)`ns;
43}
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