| # REQUIRES: x86 |
| ## Show how symbols in GCed mergeable pieces behave. |
| |
| # RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o |
| # RUN: ld.lld --gc-sections %t.o -o %t.elf |
| # RUN: llvm-readelf %t.elf --sections --syms | FileCheck %s |
| |
| .section .rodata.merge,"aM",@progbits,4 |
| a1: ## Unreferenced. In first fragment, kept by a2 reference. |
| .short 1 |
| a2: ## Referenced. |
| .short 1 |
| b1: ## Unreferenced. Discarded as second fragment is unreferenced. |
| .short 1 |
| b2: ## Unreferenced. Discarded as second fragment is unreferenced. |
| .short 1 |
| c1: ## Referenced. |
| .short 1 |
| c2: ## Unreferenced. In third fragment, kept by c1 reference. |
| .short 1 |
| |
| .data |
| .global _start |
| _start: |
| .quad a2 |
| .quad c1 |
| |
| # CHECK: .rodata PROGBITS [[#%x, ADDR:]] |
| |
| # CHECK: Symbol table '.symtab' contains 6 entries: |
| # CHECK-NEXT: Num: Value {{.*}} Ndx Name |
| # CHECK-NEXT: 0: {{.*}} UND{{ *$}} |
| # CHECK-NEXT: 1: {{0*}}[[#ADDR]] {{.*}} a1 |
| # CHECK-NEXT: 2: {{0*}}[[#ADDR+2]] {{.*}} a2 |
| # CHECK-NEXT: 3: {{0*}}[[#ADDR]] {{.*}} c1 |
| # CHECK-NEXT: 4: {{0*}}[[#ADDR+2]] {{.*}} c2 |
| # CHECK-NEXT: 5: {{.*}} _start |
