derek.holloway
7502bf64a4
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168 lines
6.2 KiB
ArmAsm
168 lines
6.2 KiB
ArmAsm
# Test that landing pads at fragment entries are not omitted during unwinding.
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# This uses profile2 splitting with a fake fdata, so SplitFunctions splits main
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# right before landing pad.
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# RUN: llvm-mc --filetype=obj --triple x86_64-unknown-unknown %s -o %t.o
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# RUN: link_fdata %s %t.o %t.fdata
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# RUN: llvm-strip --strip-unneeded %t.o
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# RUN: %clang++ %cflags %t.o -o %t.exe -Wl,-q
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# RUN: llvm-bolt %t.exe -o %t.bolt --split-functions --data=%t.fdata \
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# RUN: --print-split --print-only=main --split-eh --split-all-cold \
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# RUN: 2>&1 | FileCheck --check-prefix=BOLT-CHECK %s
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# RUN: %t.bolt | FileCheck --check-prefix=RUN-CHECK %s
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# BOLT-CHECK: ------- HOT-COLD SPLIT POINT -------
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# BOLT-CHECK-EMPTY:
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# BOLT-CHECK-NEXT: .LLP1
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# RUN-CHECK: failed successfully
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.text
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.file "lp-fragment-start.cpp"
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.globl main # -- Begin function main
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.p2align 4, 0x90
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.type main,@function
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main: # @main
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.Lfunc_begin0:
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.cfi_startproc
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.cfi_personality 155, DW.ref.__gxx_personality_v0
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.cfi_lsda 27, .Lexception0
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pushq %r15
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.cfi_def_cfa_offset 16
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pushq %r14
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.cfi_def_cfa_offset 24
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pushq %rbx
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.cfi_def_cfa_offset 32
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.cfi_offset %rbx, -32
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.cfi_offset %r14, -24
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.cfi_offset %r15, -16
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movl $16, %edi
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LL_fdata0:
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callq __cxa_allocate_exception@PLT
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# FDATA: 1 main #LL_fdata0# 1 __cxa_allocate_exception@PLT 0 0 1
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movq %rax, %rbx
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.Ltmp0:
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leaq .L.str(%rip), %rsi
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movq %rax, %rdi
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callq _ZNSt13runtime_errorC1EPKc@PLT
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jmp .Ltmp3
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.Ltmp1:
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# Cause split here, so .Ltmp5 is the first block of the fragment
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.Ltmp5: # LP for .Ltmp3 to .Ltmp4
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movq %rdx, %r15
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movq %rax, %r14
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jmp .LBB0_4
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.Ltmp3: # throw std::runtime_error
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movq _ZTISt13runtime_error@GOTPCREL(%rip), %rsi
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movq _ZNSt13runtime_errorD1Ev@GOTPCREL(%rip), %rdx
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movq %rbx, %rdi
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callq __cxa_throw@PLT # LP: .Ltmp5
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.Ltmp4:
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.Ltmp2:
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movq %rdx, %r15
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movq %rax, %r14
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movq %rbx, %rdi
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callq __cxa_free_exception@PLT
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.LBB0_4:
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movq %r14, %rdi
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cmpl $1, %r15d
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jne .LBB0_5
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callq __cxa_begin_catch@PLT
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movq (%rax), %rcx
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movq %rax, %rdi
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callq *16(%rcx)
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movq %rax, %rdi
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callq puts@PLT
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callq __cxa_end_catch@PLT
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xorl %eax, %eax
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popq %rbx
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.cfi_def_cfa_offset 24
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popq %r14
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.cfi_def_cfa_offset 16
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popq %r15
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.cfi_def_cfa_offset 8
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retq
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.LBB0_5:
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.cfi_def_cfa_offset 32
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callq _Unwind_Resume@PLT
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.Lfunc_end0:
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.size main, .Lfunc_end0-main
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.cfi_endproc
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.section .gcc_except_table,"a",@progbits
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.p2align 2
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GCC_except_table0:
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.Lexception0:
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.byte 255 # @LPStart Encoding = omit
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.byte 155 # @TType Encoding = indirect pcrel sdata4
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.uleb128 .Lttbase0-.Lttbaseref0
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.Lttbaseref0:
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.byte 1 # Call site Encoding = uleb128
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.uleb128 .Lcst_end0-.Lcst_begin0
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.Lcst_begin0:
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.uleb128 .Lfunc_begin0-.Lfunc_begin0 # >> Call Site 1 <<
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.uleb128 .Ltmp0-.Lfunc_begin0 # Call between .Lfunc_begin0 and .Ltmp0
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.byte 0 # has no landing pad
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.byte 0 # On action: cleanup
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.uleb128 .Ltmp0-.Lfunc_begin0 # >> Call Site 2 <<
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.uleb128 .Ltmp1-.Ltmp0 # Call between .Ltmp0 and .Ltmp1
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.uleb128 .Ltmp2-.Lfunc_begin0 # jumps to .Ltmp2
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.byte 3 # On action: 2
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.uleb128 .Ltmp3-.Lfunc_begin0 # >> Call Site 3 <<
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.uleb128 .Ltmp4-.Ltmp3 # Call between .Ltmp3 and .Ltmp4
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.uleb128 .Ltmp5-.Lfunc_begin0 # jumps to .Ltmp5
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.byte 5 # On action: 3
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.uleb128 .Ltmp4-.Lfunc_begin0 # >> Call Site 4 <<
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.uleb128 .Lfunc_end0-.Ltmp4 # Call between .Ltmp4 and .Lfunc_end0
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.byte 0 # has no landing pad
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.byte 0 # On action: cleanup
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.Lcst_end0:
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.byte 0 # >> Action Record 1 <<
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.byte 0 # No further actions
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.byte 1 # >> Action Record 2 <<
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.byte 125 # Continue to action 1
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.byte 1 # >> Action Record 3 <<
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.byte 0 # No further actions
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.p2align 2
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.Ltmp6: # TypeInfo 1
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.long .L_ZTISt13runtime_error.DW.stub-.Ltmp6
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.Lttbase0:
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.p2align 2
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.type .L.str,@object # @.str
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.section .rodata.str1.1,"aMS",@progbits,1
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.L.str:
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.asciz "failed successfully"
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.size .L.str, 20
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.data
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.p2align 3
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.L_ZTISt13runtime_error.DW.stub:
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.quad _ZTISt13runtime_error
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.hidden DW.ref.__gxx_personality_v0
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.weak DW.ref.__gxx_personality_v0
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.section .data.DW.ref.__gxx_personality_v0,"aGw",@progbits,DW.ref.__gxx_personality_v0,comdat
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.p2align 3
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.type DW.ref.__gxx_personality_v0,@object
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.size DW.ref.__gxx_personality_v0, 8
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DW.ref.__gxx_personality_v0:
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.quad __gxx_personality_v0
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.ident "clang version 14.0.0 (https://github.com/llvm/llvm-project.git 329fda39c507e8740978d10458451dcdb21563be)"
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.section ".note.GNU-stack","",@progbits
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.addrsig
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.addrsig_sym __gxx_personality_v0
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.addrsig_sym _Unwind_Resume
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.addrsig_sym _ZTISt13runtime_error
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# #include <cstdio>
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# #include <stdexcept>
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#
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# int main() {
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# try {
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# throw std::runtime_error("failed successfully");
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# } catch (const std::runtime_error &e) {
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# puts(e.what());
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# }
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# return 0;
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# }
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