https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82395
Bug ID: 82395
Summary: [8 Regression] qsort comparator non-negative on sorted
output: 1 in color_allocnos
Product: gcc
Version: unknown
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
Target Milestone: ---
After Alexander added the validation (r253295), we ICE on:
./xgcc -B.
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/tree-prof/pr44777.c
-fira-algorithm=priority -Og
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/tree-prof/pr44777.c: In
function ‘y’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/tree-prof/pr44777.c:31:5:
error: qsort comparator non-negative on sorted output: 1
}
^
during RTL pass: ira
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/tree-prof/pr44777.c:31:5:
internal compiler error: qsort checking failed
0x1b54377 qsort_chk_error
../../gcc/vec.c:222
0x1b5473f qsort_chk(void*, unsigned long, unsigned long, int (*)(void const*,
void const*))
../../gcc/vec.c:274
0xd12e34 color_allocnos
../../gcc/ira-color.c:3087
0xd13887 color_pass
../../gcc/ira-color.c:3261
0xcf81b3 ira_traverse_loop_tree(bool, ira_loop_tree_node*, void
(*)(ira_loop_tree_node*), void (*)(ira_loop_tree_node*))
../../gcc/ira-build.c:1781
0xd141f6 do_coloring
../../gcc/ira-color.c:3412
0xd17f38 color
../../gcc/ira-color.c:4782
0xd185a4 ira_color()
../../gcc/ira-color.c:4897
0xcf2c3f ira
../../gcc/ira.c:5283
0xcf340e execute
../../gcc/ira.c:5581
