derek.holloway
7502bf64a4
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53 lines
1.1 KiB
ArmAsm
53 lines
1.1 KiB
ArmAsm
## This reproduces a bug where not registering cold fragment entry points
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## leads to removing blocks and an inconsistent CFG after UCE.
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## Test assembly was obtained using C-Reduce from this C++ code:
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## (compiled with `g++ -O2 -Wl,-q`)
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#
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# #include <stdexcept>
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# int a;
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# int main() {
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# if (a)
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# try {
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# throw std::logic_error("");
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# } catch (...) {}
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# try {
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# throw std::logic_error("");
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# } catch (...) {}
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# }
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# REQUIRES: system-linux
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# RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown %s -o %t.o
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# RUN: %clangxx %cxxflags -no-pie %t.o -o %t.exe -Wl,-q
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# RUN: llvm-bolt %t.exe -o %t.out --dump-dot-all --funcs=main.* \
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# RUN: 2>&1 | FileCheck %s
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#
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# CHECK-NOT: Assertion `isValid()' failed.
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.globl main
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main:
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jmp .L3 # jump to the secondary entry point in main.cold.0
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.section a,"ax"
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main.cold.0:
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.cfi_startproc
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.cfi_lsda 3,b
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ud2
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call __cxa_throw
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.L3:
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nop
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.cfi_endproc
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.section .gcc_except_table
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b:
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.byte 0xff,0x3
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.uleb128 e-c
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c:
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.byte 1
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.uleb128 e-d
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d:
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.uleb128 0,0,0,0,0
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.uleb128 .L3-main.cold.0
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.uleb128 .L3-main.cold.0
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e:
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