| ## Verify that BOLT does not crash while encountering instruction sequence that |
| ## does not perfectly match jump table pattern. |
| |
| # REQUIRES: system-linux |
| |
| # RUN: llvm-mc -filetype=obj -triple aarch64-unknown-unknown %s -o %t.o |
| # RUN: %clang %cflags --target=aarch64-unknown-linux %t.o -o %t.exe -Wl,-q |
| # RUN: llvm-bolt %t.exe -o %t.bolt --print-cfg 2>&1 | FileCheck %s |
| |
| .section .text |
| .align 4 |
| .globl _start |
| .type _start, %function |
| _start: |
| sub w0, w0, #0x4a |
| ## The address loaded into x22 is undefined. However, the instructions that |
| ## follow ldr, use the x22 address as a regular jump table. |
| ldr x22, [x29, #0x98] |
| ldrb w0, [x22, w0, uxtw] |
| adr x1, #12 |
| add x0, x1, w0, sxtb #2 |
| br x0 |
| # CHECK: br x0 # UNKNOWN |
| .L0: |
| ret |
| .size _start, .-_start |
| |
| ## Force relocation mode. |
| .reloc 0, R_AARCH64_NONE |
