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error in ast-merge to new ast file #72783

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yangxili2023 opened this issue Nov 19, 2023 · 2 comments
Open

error in ast-merge to new ast file #72783

yangxili2023 opened this issue Nov 19, 2023 · 2 comments
Labels
clang:frontend Language frontend issues, e.g. anything involving "Sema" crash Prefer [crash-on-valid] or [crash-on-invalid]

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@yangxili2023
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yangxili2023 commented Nov 19, 2023 •
edited

When ast-merge two AST files, the one using <math.h> or <stdio.h>..., to one AST file, there is an error and request me submit the bug report.

llvm version 17.0.0 up

1.Edit a c source file:

#include <math.h>
void func()
{
return;
}

  1. Check the compile environment:

clang -E -x c - -v

  1. Compile the c file to ast file:

clang -cc1 -triple x86_64-pc-windows-msvc19.16.27027 -E -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name - -mrelocation-model pic -pic-level 2 -mframe-pointer=none -fmath-errno -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -v "-fcoverage-compilation-dir=D:\llvm\example\err" -resource-dir "C:\Program Files\LLVM\lib\clang\17" -internal-isystem "C:\Program Files\LLVM\lib\clang\17\include" -internal-isystem "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.16.27023\include" -internal-isystem "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.16.27023\atlmfc\include" -internal-isystem "C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\ucrt" -internal-isystem "C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\shared" -internal-isystem "C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\um" -internal-isystem "C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\winrt" -internal-isystem "C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\cppwinrt" "-fdebug-compilation-dir=D:\llvm\example\err" -ferror-limit 19 -fmessage-length=120 -fno-use-cxa-atexit -fms-extensions -fms-compatibility -fms-compatibility-version=19.16.27027 -fdelayed-template-parsing -fcolor-diagnostics -faddrsig a.c -emit-pch -o a.ast

4.Merge this ast file (with or not with other ast file) to new ast file:

clang -cc1 -ast-merge a.ast NUL -emit-pch -o aa.ast

  1. Shell output:

PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0. Program arguments: clang -cc1 -ast-merge a.ast NUL -emit-pch -o aa.ast

  1.  <eof> parser at end of file

Exception Code: 0xC0000005
#0 0x00007ff78f26629b C:\Program Files\LLVM\bin\clang.exe 0x3dd629b C:\Program Files\LLVM\bin\clang.exe 0x3de1118
#1 0x00007ff78f26629b C:\Program Files\LLVM\bin\clang.exe 0x3ddf904 C:\Program Files\LLVM\bin\clang.exe 0x362ff3c
#2 0x00007ff78f26629b C:\Program Files\LLVM\bin\clang.exe 0x35d5db3 C:\Program Files\LLVM\bin\clang.exe 0x2340013
#3 0x00007ff78f26629b C:\Program Files\LLVM\bin\clang.exe 0x2b17f4e C:\Program Files\LLVM\bin\clang.exe 0x30497
#4 0x00007ff78f26629b C:\Program Files\LLVM\bin\clang.exe 0x2ff37 C:\Program Files\LLVM\bin\clang.exe 0x2c82d
#5 0x00007ff78f26629b C:\Program Files\LLVM\bin\clang.exe 0x2b306 C:\Program Files\LLVM\bin\clang.exe 0x29afe
#6 0x00007ff78f26629b C:\Program Files\LLVM\bin\clang.exe 0x131511 C:\Program Files\LLVM\bin\clang.exe 0x12edb1
#7 0x00007ff78f26629b C:\Program Files\LLVM\bin\clang.exe 0x23c68b0 (C:\Program Files\LLVM\bin\clang.exe+0x3dd629b)
#8 0x00007ff78f26629b
#9 0x00007ff78f26629b (C:\Program Files\LLVM\bin\clang.exe+0x3dd629b)
0x00007FF78F26629B, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x3DD629B byte(s)
0x00007FF78F271118, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x3DE1118 byte(s)
0x00007FF78F26F904, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x3DDF904 byte(s)
0x00007FF78EABFF3C, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x362FF3C byte(s)
0x00007FF78EA65DB3, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x35D5DB3 byte(s)
0x00007FF78D7D0013, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x2340013 byte(s)
0x00007FF78DFA7F4E, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x2B17F4E byte(s)
0x00007FF78B4C0497, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x30497 byte(s)
0x00007FF78B4BFF37, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x2FF37 byte(s)
0x00007FF78B4BC82D, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x2C82D byte(s)
0x00007FF78B4BB306, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x2B306 byte(s)
0x00007FF78B4B9AFE, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x29AFE byte(s)
0x00007FF78B5C1511, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x131511 byte(s)
0x00007FF78B5BEDB1, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x12EDB1 byte(s)
0x00007FF78D8568B0, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x23C68B0 byte(s)
0x00007FF8622F7614, C:\WINDOWS\System32\KERNEL32.DLL(0x00007FF8622E0000) + 0x17614 byte(s), BaseThreadInitThunk() + 0x14 byte(s)
0x00007FF8632C26A1, C:\WINDOWS\SYSTEM32\ntdll.dll(0x00007FF863270000) + 0x526A1 byte(s), RtlUserThreadStart() + 0x21 byte(s)

  1. Try an other c file:

void func()
{
return;
}

everything is ok.
@jcsxky jcsxky mentioned this issue Nov 22, 2023
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@yangxili2023
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Thanks everybody! It's OK.

@EugeneZelenko EugeneZelenko added clang:frontend Language frontend issues, e.g. anything involving "Sema" crash Prefer [crash-on-valid] or [crash-on-invalid] and removed new issue labels Nov 28, 2023
@llvmbot
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llvmbot commented Nov 28, 2023

@llvm/issue-subscribers-clang-frontend

Author: Old Head Music (yangxili2023)

When ast-merge two AST files, the one using `<math.h>` or `<stdio.h>`..., to one AST file, there is an error and request me submit the bug report.

llvm version 17.0.0 up

1.Edit a c source file:

#include <math.h>
void func()
{
return;
}

  1. Check the compile environment:

clang -E -x c - -v

  1. Compile the c file to ast file:

clang -cc1 -triple x86_64-pc-windows-msvc19.16.27027 -E -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name - -mrelocation-model pic -pic-level 2 -mframe-pointer=none -fmath-errno -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -v "-fcoverage-compilation-dir=D:\llvm\example\err" -resource-dir "C:\Program Files\LLVM\lib\clang\17" -internal-isystem "C:\Program Files\LLVM\lib\clang\17\include" -internal-isystem "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.16.27023\include" -internal-isystem "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.16.27023\atlmfc\include" -internal-isystem "C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\ucrt" -internal-isystem "C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\shared" -internal-isystem "C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\um" -internal-isystem "C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\winrt" -internal-isystem "C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\cppwinrt" "-fdebug-compilation-dir=D:\llvm\example\err" -ferror-limit 19 -fmessage-length=120 -fno-use-cxa-atexit -fms-extensions -fms-compatibility -fms-compatibility-version=19.16.27027 -fdelayed-template-parsing -fcolor-diagnostics -faddrsig a.c -emit-pch -o a.ast

4.Merge this ast file (with or not with other ast file) to new ast file:

clang -cc1 -ast-merge a.ast NUL -emit-pch -o aa.ast

  1. Shell output:

PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0. Program arguments: clang -cc1 -ast-merge a.ast NUL -emit-pch -o aa.ast

  1.  &lt;eof&gt; parser at end of file

Exception Code: 0xC0000005
#0 0x00007ff78f26629b C:\Program Files\LLVM\bin\clang.exe 0x3dd629b C:\Program Files\LLVM\bin\clang.exe 0x3de1118
#1 0x00007ff78f26629b C:\Program Files\LLVM\bin\clang.exe 0x3ddf904 C:\Program Files\LLVM\bin\clang.exe 0x362ff3c
#2 0x00007ff78f26629b C:\Program Files\LLVM\bin\clang.exe 0x35d5db3 C:\Program Files\LLVM\bin\clang.exe 0x2340013
#3 0x00007ff78f26629b C:\Program Files\LLVM\bin\clang.exe 0x2b17f4e C:\Program Files\LLVM\bin\clang.exe 0x30497
#4 0x00007ff78f26629b C:\Program Files\LLVM\bin\clang.exe 0x2ff37 C:\Program Files\LLVM\bin\clang.exe 0x2c82d
#5 0x00007ff78f26629b C:\Program Files\LLVM\bin\clang.exe 0x2b306 C:\Program Files\LLVM\bin\clang.exe 0x29afe
#6 0x00007ff78f26629b C:\Program Files\LLVM\bin\clang.exe 0x131511 C:\Program Files\LLVM\bin\clang.exe 0x12edb1
#7 0x00007ff78f26629b C:\Program Files\LLVM\bin\clang.exe 0x23c68b0 (C:\Program Files\LLVM\bin\clang.exe+0x3dd629b)
#8 0x00007ff78f26629b
#9 0x00007ff78f26629b (C:\Program Files\LLVM\bin\clang.exe+0x3dd629b)
0x00007FF78F26629B, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x3DD629B byte(s)
0x00007FF78F271118, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x3DE1118 byte(s)
0x00007FF78F26F904, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x3DDF904 byte(s)
0x00007FF78EABFF3C, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x362FF3C byte(s)
0x00007FF78EA65DB3, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x35D5DB3 byte(s)
0x00007FF78D7D0013, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x2340013 byte(s)
0x00007FF78DFA7F4E, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x2B17F4E byte(s)
0x00007FF78B4C0497, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x30497 byte(s)
0x00007FF78B4BFF37, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x2FF37 byte(s)
0x00007FF78B4BC82D, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x2C82D byte(s)
0x00007FF78B4BB306, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x2B306 byte(s)
0x00007FF78B4B9AFE, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x29AFE byte(s)
0x00007FF78B5C1511, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x131511 byte(s)
0x00007FF78B5BEDB1, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x12EDB1 byte(s)
0x00007FF78D8568B0, C:\Program Files\LLVM\bin\clang.exe(0x00007FF78B490000) + 0x23C68B0 byte(s)
0x00007FF8622F7614, C:\WINDOWS\System32\KERNEL32.DLL(0x00007FF8622E0000) + 0x17614 byte(s), BaseThreadInitThunk() + 0x14 byte(s)
0x00007FF8632C26A1, C:\WINDOWS\SYSTEM32\ntdll.dll(0x00007FF863270000) + 0x526A1 byte(s), RtlUserThreadStart() + 0x21 byte(s)

  1. Try an other c file:

void func()
{
return;
}

everything is ok.

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[clang][AST][ASTMerge] prevent AST nodes from being deallocated early jcsxky/llvm-project
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@EugeneZelenko @llvmbot @yangxili2023