1# REQUIRES: x86, aarch64 2 3# RUN: rm -rf %t; split-file %s %t 4# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos11.0 %t/strong.s -o %t/strong_x86_64.o 5# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos11.0 %t/weak.s -o %t/weak_x86_64.o 6# RUN: %lld -dylib -dead_strip %t/strong_x86_64.o %t/weak_x86_64.o -o %t/libstrongweak_x86_64.dylib 7# RUN: llvm-dwarfdump --eh-frame %t/libstrongweak_x86_64.dylib | FileCheck --check-prefixes CHECK,X86_64 %s 8# RUN: %lld -dylib -dead_strip %t/weak_x86_64.o %t/strong_x86_64.o -o %t/libweakstrong_x86_64.dylib 9# RUN: llvm-dwarfdump --eh-frame %t/libweakstrong_x86_64.dylib | FileCheck --check-prefixes CHECK,X86_64 %s 10 11# RUN: llvm-mc -filetype=obj -triple=arm64-apple-macos11.0 %t/strong.s -o %t/strong_arm64.o 12# RUN: llvm-mc -filetype=obj -triple=arm64-apple-macos11.0 %t/weak.s -o %t/weak_arm64.o 13# RUN: %lld -arch arm64 -dylib -dead_strip %t/strong_arm64.o %t/weak_arm64.o -o %t/libstrongweak_arm64.dylib 14# RUN: llvm-dwarfdump --eh-frame %t/libstrongweak_arm64.dylib | FileCheck --check-prefixes CHECK,ARM64 %s 15# RUN: %lld -arch arm64 -dylib -dead_strip %t/weak_arm64.o %t/strong_arm64.o -o %t/libweakstrong_arm64.dylib 16# RUN: llvm-dwarfdump --eh-frame %t/libweakstrong_arm64.dylib | FileCheck --check-prefixes CHECK,ARM64 %s 17 18## Verify that unneeded FDEs (and their CIEs) are dead-stripped even if they 19## point to a live symbol (e.g. because we had multiple weak definitions). 20 21# CHECK: .eh_frame contents: 22# X86_64: 00000000 00000014 00000000 CIE 23# X86_64: 00000018 0000001c 0000001c FDE cie=00000000 24# ARM64: 00000000 00000010 00000000 CIE 25# ARM64: 00000014 00000018 00000018 FDE cie=00000000 26# CHECK-NOT: CIE 27# CHECK-NOT: FDE 28 29#--- strong.s 30.globl _fun 31_fun: 32 .cfi_startproc 33 ## cfi_escape cannot be encoded in compact unwind 34 .cfi_escape 0 35 ret 36 .cfi_endproc 37 38#--- weak.s 39.globl _fun 40.weak_definition _fun 41_fun: 42 .cfi_startproc 43 ## cfi_escape cannot be encoded in compact unwind 44 .cfi_escape 0 45 ret 46 .cfi_endproc 47