https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79763
Bug ID: 79763
Summary: [CHKP] ICE in chkp_find_bounds: Unexpected tree code
real_cst in tree-chkp.c:3681
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: ipa
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: ienkovich at gcc dot gnu.org
Target Milestone: ---
Starting from introduction of MPX, we ICE on an LLVM test-case:
$ cat
/home/marxin/BIG/Programming/llvm-project/clang/test/CodeGen/func-ptr-cast-decl.c
// RUN: %clang_cc1 -emit-llvm-only %s -verify
// expected-no-diagnostics
// PR5882
int q_sk_num(void *a);
typedef int (*fptr)(double);
void a() { ((fptr)q_sk_num)(0); }
$ gcc
/home/marxin/BIG/Programming/llvm-project/clang/test/CodeGen/func-ptr-cast-decl.c
-fcheck-pointer-bounds
-mmpx/home/marxin/BIG/Programming/llvm-project/clang/test/CodeGen/func-ptr-cast-decl.c:
In function ‘a’:
/home/marxin/BIG/Programming/llvm-project/clang/test/CodeGen/func-ptr-cast-decl.c:7:13:
warning: function called through a non-compatible type
void a() { ((fptr)q_sk_num)(0); }
~^~~~~~~~~~~~~~~
/home/marxin/BIG/Programming/llvm-project/clang/test/CodeGen/func-ptr-cast-decl.c:
In function ‘a.chkp’:
/home/marxin/BIG/Programming/llvm-project/clang/test/CodeGen/func-ptr-cast-decl.c:7:1:
internal compiler error: chkp_find_bounds: Unexpected tree code real_cst
void a() { ((fptr)q_sk_num)(0); }
^~~~
0xe230e7 chkp_find_bounds_1
../../gcc/tree-chkp.c:3681
0xe27a0f chkp_find_bounds
../../gcc/tree-chkp.c:3702
0xe27a0f chkp_add_bounds_to_call_stmt
../../gcc/tree-chkp.c:1899
0xe27a0f chkp_instrument_function
../../gcc/tree-chkp.c:4286
0xe27a0f chkp_execute
../../gcc/tree-chkp.c:4470
0xe27a0f execute
../../gcc/tree-chkp.c:4529
