https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67921
Bug ID: 67921
Summary: "internal compiler error: in build_polynomial_chrec,
at tree-chrec.h:147" when using -fsanitize=undefined
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: sanitizer
Assignee: unassigned at gcc dot gnu.org
Reporter: jamrial at gmail dot com
CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
jakub at gcc dot gnu.org, kcc at gcc dot gnu.org
Target Milestone: ---
Created attachment 36478
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36478&action=edit
Preprocessed source as generated by -freport-bug
/home/jamrial/ffmpeg/libavcodec/dcaenc.c: In function ‘calc_masking’:
/home/jamrial/ffmpeg/libavcodec/dcaenc.c:497:13: internal compiler error: in
build_polynomial_chrec, at tree-chrec.h:147
static void calc_masking(DCAEncContext *c, const int32_t *input)
^
0x11b8044 build_polynomial_chrec
/home/jamrial/gcc-svn/gcc/tree-chrec.h:147
0xb9d6b9 interpret_rhs_expr
/home/jamrial/gcc-svn/gcc/tree-scalar-evolution.c:1820
0xb99d34 interpret_expr
/home/jamrial/gcc-svn/gcc/tree-scalar-evolution.c:1896
0xb99d34 analyze_scalar_evolution_1
/home/jamrial/gcc-svn/gcc/tree-scalar-evolution.c:1957
0xb9a837 analyze_scalar_evolution(loop*, tree_node*)
/home/jamrial/gcc-svn/gcc/tree-scalar-evolution.c:2046
0xb9d75d interpret_rhs_expr
/home/jamrial/gcc-svn/gcc/tree-scalar-evolution.c:1866
0xb99d34 interpret_expr
/home/jamrial/gcc-svn/gcc/tree-scalar-evolution.c:1896
0xb99d34 analyze_scalar_evolution_1
/home/jamrial/gcc-svn/gcc/tree-scalar-evolution.c:1957
0xb9a837 analyze_scalar_evolution(loop*, tree_node*)
/home/jamrial/gcc-svn/gcc/tree-scalar-evolution.c:2046
0xb9d78e interpret_rhs_expr
/home/jamrial/gcc-svn/gcc/tree-scalar-evolution.c:1805
0xb99d34 interpret_expr
/home/jamrial/gcc-svn/gcc/tree-scalar-evolution.c:1896
0xb99d34 analyze_scalar_evolution_1
/home/jamrial/gcc-svn/gcc/tree-scalar-evolution.c:1957
0xb9a837 analyze_scalar_evolution(loop*, tree_node*)
/home/jamrial/gcc-svn/gcc/tree-scalar-evolution.c:2046
0xb9d4ee interpret_rhs_expr
/home/jamrial/gcc-svn/gcc/tree-scalar-evolution.c:1795
0xb99d34 interpret_expr
/home/jamrial/gcc-svn/gcc/tree-scalar-evolution.c:1896
0xb99d34 analyze_scalar_evolution_1
/home/jamrial/gcc-svn/gcc/tree-scalar-evolution.c:1957
0xb9a837 analyze_scalar_evolution(loop*, tree_node*)
/home/jamrial/gcc-svn/gcc/tree-scalar-evolution.c:2046
0xb9e0ca analyze_scalar_evolution_in_loop
/home/jamrial/gcc-svn/gcc/tree-scalar-evolution.c:2142
0xb9e212 simple_iv(loop*, loop*, tree_node*, affine_iv*, bool)
/home/jamrial/gcc-svn/gcc/tree-scalar-evolution.c:3252
0xc10bf8 find_givs_in_stmt_scev
/home/jamrial/gcc-svn/gcc/tree-ssa-loop-ivopts.c:1220
