https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103188
Alex Coplan <acoplan at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Keywords| |ice-on-valid-code
Known to fail| |12.0
Ever confirmed|0 |1
CC| |acoplan at gcc dot gnu.org
Last reconfirmed| |2021-11-11
--- Comment #1 from Alex Coplan <acoplan at gcc dot gnu.org> ---
Confirmed with an x864 -> aarch64-linux-gnu cross. Looks like a stack overflow
in SCEV:
#0 0x0000000000d05c54 in ei_container (i=<error reading variable: Cannot
access memory at address 0x7ffffbffeff0>) at
/home/alecop01/toolchain/src/gcc/gcc/basic-block.h:381
#1 0x0000000000d05d05 in ei_end_p (i=...) at
/home/alecop01/toolchain/src/gcc/gcc/basic-block.h:418
#2 0x0000000000d05de9 in ei_cond (ei=..., p=0x7ffffbfff098) at
/home/alecop01/toolchain/src/gcc/gcc/basic-block.h:468
#3 0x0000000000d0aa4e in loop_preheader_edge (loop=0x7ffff64d5d40) at
/home/alecop01/toolchain/src/gcc/gcc/cfgloop.c:1763
#4 0x000000000158d479 in block_before_loop (loop=0x7ffff64d5d40) at
/home/alecop01/toolchain/src/gcc/gcc/tree-scalar-evolution.h:52
#5 0x0000000001591a72 in analyze_scalar_evolution (loop=0x7ffff64d5d40,
var=0x7ffff6344870) at
/home/alecop01/toolchain/src/gcc/gcc/tree-scalar-evolution.c:2027
#6 0x000000000159064f in interpret_rhs_expr (loop=0x7ffff64d5d40,
at_stmt=0x7ffff64c8108, type=0x7ffff64dd5e8, rhs1=0x7ffff6344870,
code=PLUS_EXPR, rhs2=0x7ffff64e11b0) at
/home/alecop01/toolchain/src/gcc/gcc/tree-scalar-evolution.c:1714
#7 0x000000000159174b in interpret_gimple_assign (loop=0x7ffff64d5d40,
stmt=0x7ffff64c8108) at
/home/alecop01/toolchain/src/gcc/gcc/tree-scalar-evolution.c:1920
#8 0x00000000015918c0 in analyze_scalar_evolution_1 (loop=0x7ffff64d5d40,
var=0x7ffff6344558) at
/home/alecop01/toolchain/src/gcc/gcc/tree-scalar-evolution.c:1969
#9 0x0000000001591ad2 in analyze_scalar_evolution (loop=0x7ffff64d5d40,
var=0x7ffff6344558) at
/home/alecop01/toolchain/src/gcc/gcc/tree-scalar-evolution.c:2038
#10 0x000000000158fe73 in interpret_condition_phi (loop=0x7ffff64d5d40,
condition_phi=0x7ffff6386500) at
/home/alecop01/toolchain/src/gcc/gcc/tree-scalar-evolution.c:1602
#11 0x0000000001591918 in analyze_scalar_evolution_1 (loop=0x7ffff64d5d40,
var=0x7ffff6344870) at
/home/alecop01/toolchain/src/gcc/gcc/tree-scalar-evolution.c:1976
#12 0x0000000001591ad2 in analyze_scalar_evolution (loop=0x7ffff64d5d40,
var=0x7ffff6344870) at
/home/alecop01/toolchain/src/gcc/gcc/tree-scalar-evolution.c:2038
#13 0x000000000159064f in interpret_rhs_expr (loop=0x7ffff64d5d40,
at_stmt=0x7ffff64c8108, type=0x7ffff64dd5e8, rhs1=0x7ffff6344870,
code=PLUS_EXPR, rhs2=0x7ffff64e11b0) at
/home/alecop01/toolchain/src/gcc/gcc/tree-scalar-evolution.c:1714
#14 0x000000000159174b in interpret_gimple_assign (loop=0x7ffff64d5d40,
stmt=0x7ffff64c8108) at
/home/alecop01/toolchain/src/gcc/gcc/tree-scalar-evolution.c:1920
#15 0x00000000015918c0 in analyze_scalar_evolution_1 (loop=0x7ffff64d5d40,
var=0x7ffff6344558) at
/home/alecop01/toolchain/src/gcc/gcc/tree-scalar-evolution.c:1969
[...]
