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Description
I'm seeing the inline-debug-info.test test fail on the GitHub actions runner when building the 19.1.0 release. I tried to reproduce this on my local system using the exact same binary that was used on the runner, but I wasn't able to reproduce it.
The test crashes here is the backtrace:
#1 0x0000564d0d8342ce SignalHandler(int) Signals.cpp:0:0
#2 0x00007f4554642520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#3 0x0000564d0e045b01 llvm::bolt::BinaryContext::addDebugFilenameToUnit(unsigned int, unsigned int, unsigned int) (/mnt/build/tools/clang/stage2-bins/bin/llvm-bolt+0x51cfb01)
#4 0x0000564d0e055ef4 (anonymous namespace)::BinaryEmitter::emitFunctionBody(llvm::bolt::BinaryFunction&, llvm::bolt::FunctionFragment&, bool) (.llvm.4007422419785425098) BinaryEmitter.cpp:0:0
#5 0x0000564d0e057052 (anonymous namespace)::BinaryEmitter::emitFunction(llvm::bolt::BinaryFunction&, llvm::bolt::FunctionFragment&) BinaryEmitter.cpp:0:0
#6 0x0000564d0e0567f6 (anonymous namespace)::BinaryEmitter::emitFunctions()::$_0::operator()(std::vector<llvm::bolt::BinaryFunction*, std::allocator<llvm::bolt::BinaryFunction*>> const&) const BinaryEmitter.cpp:0:0
#7 0x0000564d0e0548dc llvm::bolt::emitBinaryContext(llvm::MCStreamer&, llvm::bolt::BinaryContext&, llvm::StringRef) (/mnt/build/tools/clang/stage2-bins/bin/llvm-bolt+0x51de8dc)
#8 0x0000564d0d8aeff1 llvm::bolt::RewriteInstance::run() (/mnt/build/tools/clang/stage2-bins/bin/llvm-bolt+0x4a38ff1)
#9 0x0000564d0be7bc5d main (/mnt/build/tools/clang/stage2-bins/bin/llvm-bolt+0x3005c5d)
#10 0x00007f4554629d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#11 0x00007f4554629e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#12 0x0000564d0be6e1e5 _start (/mnt/build/tools/clang/stage2-bins/bin/llvm-bolt+0x2ff81e5)
Full build log is here: https://github.com/llvm/llvm-project/actions/runs/10904034079/job/30296200517
Object disassembly from around the crash.
51cfac4: eb 28 jmp 51cfaee <_ZN4llvm4bolt13BinaryContext22addDebugFilenameToUnitEjjj+0x14e>
51cfac6: 4c 8b 64 24 70 mov 0x70(%rsp),%r12
51cfacb: f6 44 24 78 01 testb $0x1,0x78(%rsp)
51cfad0: 75 0c jne 51cfade <_ZN4llvm4bolt13BinaryContext22addDebugFilenameToUnitEjjj+0x13e>
51cfad2: eb 1a jmp 51cfaee <_ZN4llvm4bolt13BinaryContext22addDebugFilenameToUnitEjjj+0x14e>
51cfad4: 45 31 e4 xor %r12d,%r12d
51cfad7: f6 44 24 78 01 testb $0x1,0x78(%rsp)
51cfadc: 74 10 je 51cfaee <_ZN4llvm4bolt13BinaryContext22addDebugFilenameToUnitEjjj+0x14e>
51cfade: 48 8b 7c 24 70 mov 0x70(%rsp),%rdi
51cfae3: 48 85 ff test %rdi,%rdi
51cfae6: 74 06 je 51cfaee <_ZN4llvm4bolt13BinaryContext22addDebugFilenameToUnitEjjj+0x14e>
51cfae8: 48 8b 07 mov (%rdi),%rax
51cfaeb: ff 50 08 call *0x8(%rax)
51cfaee: 41 ff ce dec %r14d
51cfaf1: 49 8b 44 24 60 mov 0x60(%r12),%rax
51cfaf6: 4c 89 f1 mov %r14,%rcx
51cfaf9: 48 c1 e1 07 shl $0x7,%rcx
51cfafd: 4e 8d 2c f1 lea (%rcx,%r14,8),%r13
51cfb01: 4a 8b 44 28 30 mov 0x30(%rax,%r13,1),%rax
51cfb06: 48 8d 0d 7b 21 18 fb lea -0x4e7de85(%rip),%rcx # 351c88 <.str.1.llvm.14559657567292622853>
51cfb0d: 48 89 4c 24 58 mov %rcx,0x58(%rsp)
51cfb12: 48 85 c0 test %rax,%rax
51cfb15: 0f 84 db 00 00 00 je 51cfbf6 <_ZN4llvm4bolt13BinaryContext22addDebugFilenameToUnitEjjj+0x256>
51cfb1b: 49 8b 4c 24 48 mov 0x48(%r12),%rcx
51cfb20: 48 8d 04 40 lea (%rax,%rax,2),%rax
51cfb24: 48 c1 e0 04 shl $0x4,%rax
51cfb28: 0f 10 44 01 d0 movups -0x30(%rcx,%rax,1),%xmm0
51cfb2d: 0f 10 4c 01 e0 movups -0x20(%rcx,%rax,1),%xmm1
51cfb32: 0f 10 54 01 f0 movups -0x10(%rcx,%rax,1),%xmm2
51cfb37: 0f 29 94 24 90 00 00 movaps %xmm2,0x90(%rsp)
51cfb3e: 00
51cfb3f: 0f 29 8c 24 80 00 00 movaps %xmm1,0x80(%rsp)
51cfb46: 00
51cfb47: 0f 29 44 24 70 movaps %xmm0,0x70(%rsp)
51cfb4c: c6 84 24 a0 00 00 00 movb $0x1,0xa0(%rsp)
51cfb53: 01
51cfb54: 48 8d 7c 24 30 lea 0x30(%rsp),%rdi
51cfb59: 48 8d 74 24 70 lea 0x70(%rsp),%rsi
51cfb5e: e8 ed 35 b0 00 call 5cd3150 <_ZNK4llvm14DWARFFormValue12getAsCStringEv>