| # REQUIRES: x86 |
| # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin19.0.0 %s -o %t.o |
| # RUN: %lld -arch x86_64 -dylib %t.o -o %t.dylib |
| # RUN: llvm-objdump --macho --syms --unwind-info %t.dylib | FileCheck %s |
| |
| ## Both _f and _g have the same compact unwind encoding, |
| ## but different stack sizes. So their compact unwindings |
| ## can't be merged. |
| # CHECK: SYMBOL TABLE: |
| # CHECK: [[#%x,F:]] g F __TEXT,__text _f |
| # CHECK: [[#%x,G:]] g F __TEXT,__text _g |
| # CHECK: Number of common encodings in array: 0x1 |
| # CHECK: Common encodings: (count = 1) |
| # CHECK: encoding[0]: 0x03032000 |
| # CHECK: Second level indices: |
| # CHECK: Second level index[0]: |
| # CHECK: [0]: function offset=0x[[#%.8x,F]], encoding[0]=0x03032000 |
| # CHECK: [1]: function offset=0x[[#%.8x,G]], encoding[0]=0x03032000 |
| |
| ## Based on compiling |
| ## int f() { |
| ## char alloca[3260] = { 0 }; |
| ## return alloca[0]; |
| ## } |
| ## |
| ## int g() { |
| ## char alloca[2560] = { 0 }; |
| ## return alloca[0]; |
| ## } |
| ## with `-fomit-frame-pointer -fno-stack-protector -S`. |
| .section __TEXT,__text,regular,pure_instructions |
| .build_version macos, 10, 15 sdk_version 10, 15, 6 |
| |
| .globl _f |
| .p2align 4, 0x90 |
| _f: |
| .cfi_startproc |
| subq $3272, %rsp |
| .cfi_def_cfa_offset 3280 |
| addq $3272, %rsp |
| retq |
| .cfi_endproc |
| |
| .globl _g |
| .p2align 4, 0x90 |
| _g: |
| .cfi_startproc |
| subq $2568, %rsp |
| .cfi_def_cfa_offset 2576 |
| addq $2568, %rsp |
| retq |
| .cfi_endproc |
| |
| .subsections_via_symbols |
