https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90228
Bug ID: 90228
Summary: [UBSAN]: get_addr_base_and_unit_offset_1
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
From the C++ testsuite, for source code file
./g++.dg/warn/Wplacement-new-size-5.C with gcc trunk version 207500 and
compiler flag -O2, I get this:
../../trunk/gcc/poly-int.h:715:21: runtime error: signed integer overflow:
92233
72036854775807 + 1 cannot be represented in type 'long int'
#0 0x331775c in poly_int<1u, long>& poly_int<1u,
long>::operator+=<long>(pol
y_int_pod<1u, long> const&) ../../trunk/gcc/poly-int.h:715
#1 0x331775c in get_addr_base_and_unit_offset_1(tree_node*,
poly_int_pod<1u,
long>*, tree_node* (*)(tree_node*)) ../../trunk/gcc/tree-dfa.c:796
#2 0x222248d in gimple_fold_stmt_to_constant_1(gimple*, tree_node*
(*)(tree_
node*), tree_node* (*)(tree_node*)) ../../trunk/gcc/gimple-fold.c:6350
#3 0x36ea4f4 in ccp_fold ../../trunk/gcc/tree-ssa-ccp.c:1257
#4 0x36ea4f4 in evaluate_stmt ../../trunk/gcc/tree-ssa-ccp.c:1785
