https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67698
Bug ID: 67698 Summary: internal compiler error: in maybe_record_trace_start, at dwarf2cfi.c:2297 Product: gcc Version: 6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: other Assignee: unassigned at gcc dot gnu.org Reporter: hjl.tools at gmail dot com CC: julia.koval at intel dot com Blocks: 67552 Target Milestone: --- On hjl/interrupt/master branch, I got [hjl@gnu-6 interrupt-2]$ cat bar.c extern int check_int (int *i, void *, int align); typedef int aligned __attribute__((aligned(64))); typedef unsigned int uword_t __attribute__ ((mode (__word__))); __attribute__((interrupt)) void foo (void *frame, uword_t error_code) { aligned j; if (check_int (frame, &j, __alignof__(j))) __builtin_abort (); } [hjl@gnu-6 interrupt-2]$ /export/build/gnu/gcc/build-x86_64-linux/gcc/xgcc -B/export/build/gnu/gcc/build-x86_64-linux/gcc/ -O2 -S -o bar.s bar.c bar.c: In function ‘foo’: bar.c:12:1: internal compiler error: in maybe_record_trace_start, at dwarf2cfi.c:2297 } ^ 0x946051 maybe_record_trace_start /export/gnu/import/git/sources/gcc/gcc/dwarf2cfi.c:2297 0x94671f scan_trace /export/gnu/import/git/sources/gcc/gcc/dwarf2cfi.c:2475 0x946cc9 create_cfi_notes /export/gnu/import/git/sources/gcc/gcc/dwarf2cfi.c:2629 0x9477db execute_dwarf2_frame /export/gnu/import/git/sources/gcc/gcc/dwarf2cfi.c:2987 0x948536 execute /export/gnu/import/git/sources/gcc/gcc/dwarf2cfi.c:3467 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <http://gcc.gnu.org/bugs.html> for instructions. [hjl@gnu-6 interrupt-2]$ Referenced Bugs: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67552 [Bug 67552] [meta] x86 interrupt attribute