https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89410
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Known to work| |5.2.0
Keywords| |ice-on-invalid-code
Last reconfirmed| |2019-02-20
CC| |msebor at gcc dot gnu.org
Ever confirmed|0 |1
Summary|internal compiler error: in |[7/8/9 Regression] ICE in
|calculate_line_spans, at |calculate_line_spans, at
|diagnostic-show-locus.c:123 |diagnostic-show-locus.c:123
|7 after #line |7 after #line
Known to fail| |6.4.0, 7.3.0, 8.2.0, 9.0
--- Comment #3 from Martin Sebor <msebor at gcc dot gnu.org> ---
Confirmed with the styack trace below. According to my bisection the ICE was
introduced into GCC 6 by r233386:
r233386 | dmalcolm | 2016-02-12 14:18:03 -0500 (Fri, 12 Feb 2016) | 51 lines
PR other/69554: avoid excessive source printing for widely-separated locations
u.c: In function ‘main’:
u.c:3:2: warning: #warning first [-Wcpp]
3 | #warning first
| ^~~~~~~
u.c:-737418241:2: warning: #warning second [-Wcpp]
u.c:-737418240:7: warning: line number out of range
u.c:478333951:2: warning: #warning third [-Wcpp]
u.c:478333952:7: warning: line number out of range
u.c:478333951:2: warning: #warning fifth [-Wcpp]
u.c:478333952:7: warning: line number out of range
u.c:-991952897:2: warning: #warning sixth [-Wcpp]
u.c:-991952896:7: warning: line number out of range
u.c:-1:2: warning: #warning seventh [-Wcpp]
u.c:-1: internal compiler error: in calculate_line_spans, at
diagnostic-show-locus.c:1237
Internal compiler error: Error reporting routines re-entered.
0x20eff48 calculate_line_spans
/src/gcc/svn/gcc/diagnostic-show-locus.c:1237
0x20ef134 layout
/src/gcc/svn/gcc/diagnostic-show-locus.c:871
0x20f1e82 diagnostic_show_locus(diagnostic_context*, rich_location*,
diagnostic_t)
/src/gcc/svn/gcc/diagnostic-show-locus.c:2282
0x93fe57 c_diagnostic_finalizer
/src/gcc/svn/gcc/c-family/c-opts.c:171
0x20e7f33 diagnostic_report_diagnostic(diagnostic_context*, diagnostic_info*)
/src/gcc/svn/gcc/diagnostic.c:1020
0x20e84b0 diagnostic_impl
/src/gcc/svn/gcc/diagnostic.c:1159
0x20e9ceb internal_error(char const*, ...)
/src/gcc/svn/gcc/diagnostic.c:1540
0x20e9f53 fancy_abort(char const*, int, char const*)
/src/gcc/svn/gcc/diagnostic.c:1607
0x20eff48 calculate_line_spans
/src/gcc/svn/gcc/diagnostic-show-locus.c:1237
0x20ef134 layout
/src/gcc/svn/gcc/diagnostic-show-locus.c:871
0x20f1e82 diagnostic_show_locus(diagnostic_context*, rich_location*,
diagnostic_t)
/src/gcc/svn/gcc/diagnostic-show-locus.c:2282
0x93fe57 c_diagnostic_finalizer
/src/gcc/svn/gcc/c-family/c-opts.c:171
0x20e7f33 diagnostic_report_diagnostic(diagnostic_context*, diagnostic_info*)
/src/gcc/svn/gcc/diagnostic.c:1020
0x9078cf c_cpp_diagnostic(cpp_reader*, cpp_diagnostic_level,
cpp_warning_reason, rich_location*, char const*, __va_list_tag (*) [1])
/src/gcc/svn/gcc/c-family/c-common.c:6320
0x212ffac cpp_diagnostic_with_line
/src/gcc/svn/libcpp/errors.c:163
0x2130311 cpp_warning_with_line_syshdr(cpp_reader*, cpp_warning_reason,
unsigned int, unsigned int, char const*, ...)
/src/gcc/svn/libcpp/errors.c:238
0x212bce5 do_diagnostic
/src/gcc/svn/libcpp/directives.c:1147
0x212bda9 do_warning
/src/gcc/svn/libcpp/directives.c:1165
0x212a9af _cpp_handle_directive
/src/gcc/svn/libcpp/directives.c:541
0x213ec23 _cpp_lex_token
/src/gcc/svn/libcpp/lex.c:2609
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