| ## Test the double jump removal peephole. |
| |
| ## This test has commands that rely on shell capabilities that won't execute |
| ## correctly on Windows e.g. subshell execution |
| REQUIRES: shell |
| |
| RUN: %clangxx %cxxflags %p/Inputs/double_jump.cpp -o %t.exe |
| RUN: (llvm-bolt %t.exe --peepholes=double-jumps \ |
| RUN: --eliminate-unreachable -o %t 2>&1 \ |
| RUN: && llvm-objdump -d %t --print-imm-hex --no-show-raw-insn) | FileCheck %s |
| |
| CHECK: BOLT-INFO: Peephole: 1 double jumps patched. |
| |
| CHECK: <_Z3foom>: |
| CHECK-NEXT: pushq %rbp |
| CHECK-NEXT: movq %rsp, %rbp |
| CHECK-NEXT: movq %rdi, -0x8(%rbp) |
| CHECK-NEXT: cmpq $0x1, -0x8(%rbp) |
| CHECK-NEXT: je {{.*}} <_Z3foom+0x2c> |
| CHECK-NEXT: incq -0x8(%rbp) |
| CHECK-NEXT: incq -0x8(%rbp) |
| CHECK-NEXT: cmpq $0x2, -0x8(%rbp) |
| CHECK-NEXT: je {{.*}} <_Z3foom+0x22> |
| CHECK-NEXT: incq -0x8(%rbp) |
| CHECK-NEXT: movq -0x8(%rbp), %rdi |
| CHECK-NEXT: popq %rbp |
| CHECK-NEXT: jmp {{.*}} <bar> |
| CHECK-NEXT: popq %rbp |
| CHECK-NEXT: incq -0x8(%rbp) |
| CHECK-NEXT: jmp {{.*}} <bar> |
