derek.holloway
7502bf64a4
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55 lines
1.5 KiB
ArmAsm
55 lines
1.5 KiB
ArmAsm
# REQUIRES: x86
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin19.0.0 -emit-compact-unwind-non-canonical=true %s -o %t.o
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# RUN: %lld -arch x86_64 -dylib %t.o -o %t.dylib
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# RUN: llvm-objdump --macho --syms --unwind-info %t.dylib | FileCheck %s
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## Both _f and _g have the same compact unwind encoding,
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## but different stack sizes. So their compact unwindings
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## can't be merged.
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# CHECK: SYMBOL TABLE:
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# CHECK: [[#%x,F:]] g F __TEXT,__text _f
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# CHECK: [[#%x,G:]] g F __TEXT,__text _g
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# CHECK: Number of common encodings in array: 0x1
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# CHECK: Common encodings: (count = 1)
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# CHECK: encoding[0]: 0x03032000
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# CHECK: Second level indices:
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# CHECK: Second level index[0]:
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# CHECK: [0]: function offset=0x[[#%.8x,F]], encoding[0]=0x03032000
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# CHECK: [1]: function offset=0x[[#%.8x,G]], encoding[0]=0x03032000
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## Based on compiling
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## int f() {
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## char alloca[3260] = { 0 };
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## return alloca[0];
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## }
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##
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## int g() {
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## char alloca[2560] = { 0 };
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## return alloca[0];
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## }
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## with `-fomit-frame-pointer -fno-stack-protector -S`.
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.section __TEXT,__text,regular,pure_instructions
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.build_version macos, 10, 15 sdk_version 10, 15, 6
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.globl _f
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.p2align 4, 0x90
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_f:
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.cfi_startproc
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subq $3272, %rsp
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.cfi_def_cfa_offset 3280
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addq $3272, %rsp
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retq
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.cfi_endproc
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.globl _g
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.p2align 4, 0x90
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_g:
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.cfi_startproc
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subq $2568, %rsp
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.cfi_def_cfa_offset 2576
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addq $2568, %rsp
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retq
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.cfi_endproc
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.subsections_via_symbols
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