40 lines · c
1/* Checks that BOLT correctly handles instrumentation of executables built2 * with PIE with further optimization.3 */4#include <stdio.h>5 6int foo(int x) { return x + 1; }7 8int fib(int x) {9 if (x < 2)10 return x;11 return fib(x - 1) + fib(x - 2);12}13 14int bar(int x) { return x - 1; }15 16int main(int argc, char **argv) {17 printf("fib(%d) = %d\n", argc, fib(argc));18 return 0;19}20 21/*22REQUIRES: system-linux,bolt-runtime23 24RUN: %clang %cflags %s -o %t.exe -Wl,-q -pie -fpie25 26RUN: llvm-bolt %t.exe --instrument --instrumentation-file=%t.fdata \27RUN: -o %t.instrumented28 29# Instrumented program needs to finish returning zero30RUN: %t.instrumented 1 2 3 | FileCheck %s -check-prefix=CHECK-OUTPUT31 32# Test that the instrumented data makes sense33RUN: llvm-bolt %t.exe -o %t.bolted --data %t.fdata \34RUN: --reorder-blocks=ext-tsp --reorder-functions=hfsort+35 36RUN: %t.bolted 1 2 3 | FileCheck %s -check-prefix=CHECK-OUTPUT37 38CHECK-OUTPUT: fib(4) = 339*/40