1 | /* Checks that BOLT correctly handles instrumentation of executables built |
2 | * with PIE with further optimization. |
3 | */ |
4 | #include <stdio.h> |
5 | |
6 | int foo(int x) { return x + 1; } |
7 | |
8 | int fib(int x) { |
9 | if (x < 2) |
10 | return x; |
11 | return fib(x: x - 1) + fib(x: x - 2); |
12 | } |
13 | |
14 | int bar(int x) { return x - 1; } |
15 | |
16 | int main(int argc, char **argv) { |
17 | printf(format: "fib(%d) = %d\n" , argc, fib(x: argc)); |
18 | return 0; |
19 | } |
20 | |
21 | /* |
22 | REQUIRES: system-linux,bolt-runtime |
23 | |
24 | RUN: %clang %cflags %s -o %t.exe -Wl,-q -pie -fpie |
25 | |
26 | RUN: llvm-bolt %t.exe --instrument --instrumentation-file=%t.fdata \ |
27 | RUN: -o %t.instrumented |
28 | |
29 | # Instrumented program needs to finish returning zero |
30 | RUN: %t.instrumented 1 2 3 | FileCheck %s -check-prefix=CHECK-OUTPUT |
31 | |
32 | # Test that the instrumented data makes sense |
33 | RUN: llvm-bolt %t.exe -o %t.bolted --data %t.fdata \ |
34 | RUN: --reorder-blocks=ext-tsp --reorder-functions=hfsort+ |
35 | |
36 | RUN: %t.bolted 1 2 3 | FileCheck %s -check-prefix=CHECK-OUTPUT |
37 | |
38 | CHECK-OUTPUT: fib(4) = 3 |
39 | */ |
40 | |