| # RUN: rm -rf %t && mkdir -p %t |
| # RUN: llvm-mc -triple=x86_64-apple-macos10.9 -filetype=obj \ |
| # RUN: -o %t/helper.o %S/Inputs/MachO_GOTAndStubsOptimizationHelper.s |
| # RUN: llvm-mc -triple=x86_64-apple-macos10.9 -filetype=obj \ |
| # RUN: -o %t/testcase.o %s |
| # RUN: llvm-jitlink -noexec -slab-allocate 64Kb -entry=bypass_stub -check %s \ |
| # RUN: %t/testcase.o %t/helper.o |
| # |
| # Test that references to in-range GOT and stub targets can be bypassed. |
| # The helper file contains a function that uses the GOT for _x, and this file |
| # contains an external call to that function. By slab allocating the JIT memory |
| # we can ensure that the references and targets will be in-range of one another, |
| # which should cause both the GOT load and stub to be bypassed. |
| |
| .section __TEXT,__text,regular,pure_instructions |
| .macosx_version_min 10, 14 |
| .globl bypass_stub |
| .p2align 4, 0x90 |
| |
| # jitlink-check: decode_operand(bypass_got, 4) = _x - next_pc(bypass_got) |
| # jitlink-check: decode_operand(bypass_stub, 0) = bypass_got - next_pc(bypass_stub) |
| bypass_stub: |
| callq bypass_got |
| |
| .section __DATA,__data |
| .globl _x |
| .p2align 2 |
| _x: |
| .long 42 |
| |
| .subsections_via_symbols |