[Bug target/118781] New: [15 Regression] ICE in maybe_record_trace_start, at dwarf2cfi.cc:2591

[doko at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118781

            Bug ID: 118781
           Summary: [15 Regression] ICE in maybe_record_trace_start, at
                    dwarf2cfi.cc:2591
           Product: gcc
           Version: 15.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: doko at gcc dot gnu.org
  Target Milestone: ---

seen with trunk 20250207 on arm-linux-gnueabihf, last successful build from
20250203:

during RTL pass: dwarf2
m2/gm2-compiler-boot/M2LexBuf.c: In function 'location_t
M2LexBuf_TokenToLocation(unsigned int)':
m2/gm2-compiler-boot/M2LexBuf.c:1275:1: internal compiler error: in
maybe_record_trace_start, at dwarf2cfi.cc:2591
 1275 | }
      | ^
0xf61fb4fd __libc_start_call_main
        ../sysdeps/nptl/libc_start_call_main.h:58
0xf61fb599 __libc_start_main_impl
        ./csu/libc-start.c:360
Please submit a full bug report, with preprocessed source (by using
-freport-bug).