bolt/test/reorder-data-writable-ptload.c

   1 // This test checks that reorder-data pass puts new hot .data section
   2 // to the writable segment.
   3
   4 // Use -fPIC -pie to prevent the globals being put in .sdata instead of .data on
   5 // RISC-V.
   6 // RUN: %clang %cflags -fPIC -pie -O3 -nostdlib -Wl,-q %s -o %t.exe
   7 // RUN: llvm-bolt %t.exe -o %t.bolt --reorder-data=".data" \
   8 // RUN:   -data %S/Inputs/reorder-data-writable-ptload.fdata
   9 // RUN: llvm-readelf -SlW %t.bolt | FileCheck %s
  10
  11 // CHECK: .bolt.org.data
  12 // CHECK: {{.*}} .data PROGBITS [[#%x,ADDR:]] [[#%x,OFF:]]
  13 // CHECK: LOAD 0x{{.*}}[[#OFF]] 0x{{.*}}[[#ADDR]] {{.*}} RW
  14
  15 volatile int cold1 = 42;
  16 volatile int hot1 = 42;
  17 volatile int cold2 = 42;
  18 volatile int cold3 = 42;
  19
  20 void _start() {
  21   hot1++;
  22   _start();
  23 }