| Issue |
173718
|
| Summary |
[lli] lli crash when run variable arguments function as a interpret
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
Fushj89
|
### Description
Run `lli` comand with the flag `-force-interpreter=true` to execute bytecode, if `lli` run `variable arguments` function in the bytecode, it will crash.
### Steps to reproduce
1、compile the c code below to bytecode
`
#include <stdarg.h>
int sum(int a, ...) {
int total = a;
va_list list;
va_start(list, a);
total += va_arg(list, int);
total += va_arg(list, int);
va_end(list);
return total;
}
int main() {
int total = sum(1, 2, 3);
return total;
}
`
2、
use the command below to execute bytecode which produced by step 1
`
lli -force-interpreter=true xxx.bc
`
3 crashed
Crashing thread backtrace:
`
Stack dump:
0. Program arguments: /Users/user/llvm-project/build/bin/lli -force-interpreter=true main.bc
#0 0x0000000100d3edb0 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/Users/user/llvm-project/build/bin/lli+0x100b16db0)
#1 0x0000000100d3ccd8 llvm::sys::RunSignalHandlers() (/Users/user/llvm-project/build/bin/lli+0x100b14cd8)
#2 0x0000000100d3f804 SignalHandler(int, __siginfo*, void*) (/Users/user/llvm-project/build/bin/lli+0x100b17804)
#3 0x000000018c1196a4 (/usr/lib/system/libsystem_platform.dylib+0x1804ad6a4)
#4 0x00000001007ce900 llvm::Interpreter::visitVAArgInst(llvm::VAArgInst&) (/Users/user/llvm-project/build/bin/lli+0x1005a6900)
#5 0x00000001007cfa84 llvm::Interpreter::run() (/Users/user/llvm-project/build/bin/lli+0x1005a7a84)
#6 0x00000001007d2dfc llvm::Interpreter::runFunction(llvm::Function*, llvm::ArrayRef<llvm::GenericValue>) (/Users/user/llvm-project/build/bin/lli+0x1005aadfc)
#7 0x00000001007b84e4 llvm::ExecutionEngine::runFunctionAsMain(llvm::Function*, std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>> const&, char const* const*) (/Users/user/llvm-project/build/bin/lli+0x1005904e4)
#8 0x000000010022e0d8 main (/Users/user/llvm-project/build/bin/lli+0x1000060d8)
#9 0x000000018bd3eb98
[1] 4895 segmentation fault /Users/user/llvm-project/build/bin/lli -force-interpreter=true main.bc
`
### environment
Mac mini Apple M2
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