llvm-project/compiler-rt/test/profile/infinite_loop.c

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// RUN: %clang_pgogen -O2 -o %t %s
// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t
// RUN: llvm-profdata show -function main -counts %t.profraw| FileCheck %s
void exit(int);
int g;
__attribute__((noinline)) void foo()
{
g++;
if (g==1000)
exit(0);
}
int main()
{
while (1) {
foo();
}
}
// CHECK: Counters:
// CHECK-NEXT: main:
// CHECK-NEXT: Hash: {{.*}}
// CHECK-NEXT: Counters: 2
// CHECK-NEXT: Block counts: [1000, 1]