[Bug tree-optimization/108354] [13 Regression] Dead Code Elimination Regression at -O2 since r13-89-gb3e98eb3396e16

["pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108354

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #4)
> raised STORAGE_ERROR : stack overflow or erroneous memory access

0x00000000015769b4 in get_range_query (fun=<optimized out>) at
/home/apinski/src/upstream-gcc/gcc/gcc/value-query.h:143
143       return fun->x_range_query ? fun->x_range_query : &global_ranges;
(gdb) bt
#0  0x00000000015769b4 in get_range_query (fun=<optimized out>) at
/home/apinski/src/upstream-gcc/gcc/gcc/value-query.h:143
#1  ssa_name_has_boolean_range(tree_node*) () at
/home/apinski/src/upstream-gcc/gcc/gcc/tree-ssanames.cc:534
#2  0x0000000001ae01a6 in generic_simplify_MINUS_EXPR(unsigned int, tree_code,
tree_node*, tree_node*, tree_node*) [clone .constprop.0] () at
/home/apinski/src/upstream-gcc/gcc/gcc/tree.h:3654
#3  0x0000000000fb1286 in fold_binary_loc(unsigned int, tree_code, tree_node*,
tree_node*, tree_node*) () at
/home/apinski/src/upstream-gcc/gcc/gcc/fold-const.cc:10926
#4  0x0000000000fb8eeb in fold_build2_loc (loc=loc@entry=0,
code=code@entry=MINUS_EXPR, type=0x7ffff725c000, op0=op0@entry=0x7ffff7242d50,
op1=op1@entry=0x7ffff52a6870) at
/home/apinski/src/upstream-gcc/gcc/gcc/fold-const.cc:13824
#5  0x0000000000f7373f in get_inner_reference(tree_node*, poly_int_pod<1u,
long>*, poly_int_pod<1u, long>*, tree_node**, machine_mode*, int*, int*, int*)
() at /home/apinski/src/upstream-gcc/gcc/gcc/tree.h:3645
#6  0x00000000010a2546 in (anonymous
namespace)::isra_analyze_call(cgraph_edge*) () at
/home/apinski/src/upstream-gcc/gcc/gcc/ipa-sra.cc:2167
#7  0x00000000010a32a8 in (anonymous
namespace)::isra_analyze_all_outgoing_calls (node=<error reading variable:
dwarf2_find_location_expression: Corrupted DWARF expression.>) at
/home/apinski/src/upstream-gcc/gcc/gcc/ipa-sra.cc:2202
#8  ipa_sra_summarize_function(cgraph_node*) () at
/home/apinski/src/upstream-gcc/gcc/gcc/ipa-sra.cc:4540
#9  0x00000000010a5558 in (anonymous namespace)::ipa_sra_generate_summary() ()
at /home/apinski/src/upstream-gcc/gcc/gcc/ipa-sra.cc:2716
#10 0x0000000001242f23 in execute_ipa_summary_passes (ipa_pass=0x3a90670) at
/home/apinski/src/upstream-gcc/gcc/gcc/passes.cc:2297
(gdb) p cfun
$3 = (function *) 0x0

Ok, let me mark the pattern only for GIMPLE because it looks like we are
calling fold without setting cfun and still passing a SSA_NAME.
I suspect we might run into this issue with other code too but at least I hide
the latent bug ...