| // Check that llvm-bolt pushes code to higher addresses under |
| // --hot-functions-at-end when rewriting code in-place. |
| |
| // REQUIRES: system-linux |
| |
| // RUN: %clang %cflags -O0 %s -o %t -no-pie -Wl,-q -falign-functions=64 \ |
| // RUN: -nostartfiles -nostdlib -ffreestanding |
| // RUN: link_fdata %s %t %t.fdata |
| // RUN: llvm-bolt %t -o %t.bolt --data %t.fdata --use-old-text \ |
| // RUN: --align-functions=1 --no-huge-pages --align-text=1 --use-gnu-stack \ |
| // RUN: --hot-functions-at-end | FileCheck %s --check-prefix=CHECK-BOLT |
| // RUN: llvm-readelf --sections %t.bolt | FileCheck %s |
| |
| // CHECK-BOLT: using original .text for new code with 0x1 alignment at {{.*}} |
| |
| // As .text is pushed higher, preceding .bolt.org.text should have non-zero |
| // size. |
| // CHECK: .bolt.org.text PROGBITS |
| // CHECK-NOT: {{ 000000 }} |
| // CHECK-SAME: AX |
| // CHECK-NEXT: .text.cold PROGBITS |
| // CHECK-NEXT: .text PROGBITS |
| |
| // FDATA: 0 [unknown] 0 1 foo 0 0 1 |
| int foo() { return 0; } |
| |
| // Cold function. |
| int bar() { return 42; } |
| |
| // FDATA: 0 [unknown] 0 1 main 0 0 1 |
| int main(int argc, char **argv) { return argc ? foo() : bar(); } |
