1// Check that llvm-bolt pushes code to higher addresses under
2// --hot-functions-at-end when rewriting code in-place.
3
4// REQUIRES: system-linux
5
6// RUN: %clang %cflags -O0 %s -o %t -no-pie -Wl,-q -falign-functions=64 \
7// RUN: -nostartfiles -nostdlib -ffreestanding
8// RUN: llvm-bolt %t -o %t.bolt --use-old-text --align-functions=1 \
9// RUN: --no-huge-pages --align-text=1 --use-gnu-stack --hot-functions-at-end \
10// RUN: | FileCheck %s --check-prefix=CHECK-BOLT
11// RUN: llvm-readelf --sections %t.bolt | FileCheck %s
12
13// CHECK-BOLT: using original .text for new code with 0x1 alignment at {{.*}}
14
15// As .text is pushed higher, preceding .bolt.org.text should have non-zero
16// size.
17// CHECK: .bolt.org.text PROGBITS
18// CHECK-NOT: {{ 000000 }}
19// CHECK-SAME: AX
20// CHECK-NEXT: .text PROGBITS
21
22int foo() { return 0; }
23
24int main() { return foo(); }
25

source code of bolt/test/code-at-high-address.c