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