Closed
Description
I uploaded the code that causes the issue to rust-stack-overflow. The stack overflow occurs on both the nightly and stable compilers only when building in debug mode.
I dumped the process, and it appears that the recursion is occurring inside the regex_automata crate in the rustc_driver.
000000a0`9d807000 00007ffc`7655b3c7 : 0000028d`024e0000 00000000`00000000 00000000`000000c8 00000000`00000000 : ntdll!RtlpLowFragHeapAllocFromContext+0x10
000000a0`9d807010 00007ffc`08aaf680 : 00000000`00000000 00000000`000000c8 00000000`00000000 00000000`00000000 : ntdll!RtlpAllocateHeapInternal+0x9a7
000000a0`9d807120 00007ffc`08a8cc7b : 00000000`00000000 00007ffc`7655b86b 00000000`0070020e 00000000`000000b6 : rustc_driver_967b081c0ba70af3!_rust_alloc_zeroed+0x2375c
000000a0`9d807150 00007ffc`05d02ffa : 00000000`00000000 00000000`00000000 00000000`00000000 0000028d`024e2100 : rustc_driver_967b081c0ba70af3!_rust_alloc_zeroed+0xd57
000000a0`9d807180 00007ffc`05cfbfb4 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x175dea
000000a0`9d8071e0 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16eda4
000000a0`9d8073f0 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d807600 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d807810 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d807a20 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d807c30 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d807e40 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d808050 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d808260 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d808470 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d808680 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d808890 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d808aa0 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d808cb0 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d808ec0 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d8090d0 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d8092e0 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d8094f0 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d809700 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d809910 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d809b20 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d809d30 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d809f40 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80a150 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80a360 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80a570 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80a780 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80a990 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80aba0 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80adb0 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80afc0 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80b1d0 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80b3e0 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80b5f0 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80b800 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80ba10 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80bc20 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80be30 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80c040 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80c250 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80c460 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80c670 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80c880 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80ca90 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80cca0 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80ceb0 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80d0c0 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80d2d0 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80d4e0 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80d6f0 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
000000a0`9d80d900 00007ffc`05cfc348 : 00000000`00000000 00000000`000000d0 00000000`000000c8 00000000`00000020 : rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+0x16f138
SYMBOL_NAME: rustc_driver_967b081c0ba70af3!ZN14regex_automata10sparse_set9SparseSet5clear17hb2288ea68fdfded5E+16ef27
MODULE_NAME: rustc_driver_967b081c0ba70af3
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Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.Category: This is a bug.Call for participation: An issue has been fixed and does not reproduce, but no test has been added.Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️Bugs identified for the LLVM ICE-breaker groupMedium priorityRelevant to the compiler team, which will review and decide on the PR/issue.ICE tracked in rust-lang/glacier.Performance or correctness regression from one stable version to another.