derek.holloway
7502bf64a4
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47 lines
1.9 KiB
ArmAsm
47 lines
1.9 KiB
ArmAsm
# REQUIRES: x86, aarch64
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# RUN: rm -rf %t; split-file %s %t
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos11.0 %t/strong.s -o %t/strong_x86_64.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos11.0 %t/weak.s -o %t/weak_x86_64.o
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# RUN: %lld -dylib -dead_strip %t/strong_x86_64.o %t/weak_x86_64.o -o %t/libstrongweak_x86_64.dylib
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# RUN: llvm-dwarfdump --eh-frame %t/libstrongweak_x86_64.dylib | FileCheck --check-prefixes CHECK,X86_64 %s
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# RUN: %lld -dylib -dead_strip %t/weak_x86_64.o %t/strong_x86_64.o -o %t/libweakstrong_x86_64.dylib
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# RUN: llvm-dwarfdump --eh-frame %t/libweakstrong_x86_64.dylib | FileCheck --check-prefixes CHECK,X86_64 %s
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# RUN: llvm-mc -filetype=obj -triple=arm64-apple-macos11.0 %t/strong.s -o %t/strong_arm64.o
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# RUN: llvm-mc -filetype=obj -triple=arm64-apple-macos11.0 %t/weak.s -o %t/weak_arm64.o
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# RUN: %lld -arch arm64 -dylib -dead_strip %t/strong_arm64.o %t/weak_arm64.o -o %t/libstrongweak_arm64.dylib
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# RUN: llvm-dwarfdump --eh-frame %t/libstrongweak_arm64.dylib | FileCheck --check-prefixes CHECK,ARM64 %s
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# RUN: %lld -arch arm64 -dylib -dead_strip %t/weak_arm64.o %t/strong_arm64.o -o %t/libweakstrong_arm64.dylib
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# RUN: llvm-dwarfdump --eh-frame %t/libweakstrong_arm64.dylib | FileCheck --check-prefixes CHECK,ARM64 %s
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## Verify that unneeded FDEs (and their CIEs) are dead-stripped even if they
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## point to a live symbol (e.g. because we had multiple weak definitions).
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# CHECK: .eh_frame contents:
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# X86_64: 00000000 00000014 00000000 CIE
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# X86_64: 00000018 0000001c 0000001c FDE cie=00000000
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# ARM64: 00000000 00000010 00000000 CIE
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# ARM64: 00000014 00000018 00000018 FDE cie=00000000
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# CHECK-NOT: CIE
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# CHECK-NOT: FDE
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#--- strong.s
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.globl _fun
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_fun:
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.cfi_startproc
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## cfi_escape cannot be encoded in compact unwind
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.cfi_escape 0
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ret
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.cfi_endproc
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#--- weak.s
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.globl _fun
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.weak_definition _fun
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_fun:
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.cfi_startproc
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## cfi_escape cannot be encoded in compact unwind
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.cfi_escape 0
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ret
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.cfi_endproc
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