1// RUN: %clang_cfi -lm -o %t1 %s
2// RUN: %t1 c 1 2>&1 | FileCheck --check-prefix=CFI %s
3// RUN: %t1 s 2 2>&1 | FileCheck --check-prefix=CFI %s
4
5// This test uses jump tables containing PC-relative references to external
6// symbols, which the Mach-O object writer does not currently support.
7// The test passes on i386 Darwin and fails on x86_64, hence unsupported instead of xfail.
8// UNSUPPORTED: darwin
9
10#include <stdlib.h>
11#include <stdio.h>
12#include <math.h>
13
14int main(int argc, char **argv) {
15 // CFI: 1
16 fprintf(stderr, format: "1\n");
17
18 double (*fn)(double);
19 if (argv[1][0] == 's')
20 fn = sin;
21 else
22 fn = cos;
23
24 fn(atof(nptr: argv[2]));
25
26 // CFI: 2
27 fprintf(stderr, format: "2\n");
28}
29

source code of compiler-rt/test/cfi/icall/external-call.c