https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121923
Bug ID: 121923
Summary: ICF doesn't pass function decl to sanitize_flags_p
Product: gcc
Version: 16.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: ipa
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
Target Milestone: ---
ipa_icf::sem_variable::merge has
if (DECL_ALIGN (original->decl) != DECL_ALIGN (alias->decl)
&& (sanitize_flags_p (SANITIZE_ADDRESS, original->decl)
|| sanitize_flags_p (SANITIZE_ADDRESS, alias->decl)))
{
if (dump_enabled_p ())
dump_printf (MSG_MISSED_OPTIMIZATION,
"Not unifying; "
"ASAN requires equal alignments for original and
alias\n");
return false;
}
when compiling c-c++-common/asan/pr99168.c. But original->decl isn't a function
decl:
2045 && (sanitize_flags_p (SANITIZE_ADDRESS, original->decl)
(gdb) call debug (original->decl)
<var_decl 0x7fffe9610ed8 variables1
type <record_type 0x7fffe99ff150 my_struct asm_written tree_2 tree_4 BLK
size <integer_cst 0x7fffe99f8348 constant 1024>
unit-size <integer_cst 0x7fffe9611db0 constant 128>
user align:1024 warn_if_not_align:0 symtab:-379480512 alias-set 3
canonical-type 0x7fffe99ff150
attributes <tree_list 0x7fffe9601b40
purpose <identifier_node 0x7fffe96195f0 aligned>
value <tree_list 0x7fffe9601ac8
value <integer_cst 0x7fffe9611d80 constant 128>>>
fields <field_decl 0x7fffe982c8c0 x type <integer_type 0x7fffe99ff2a0
long unsigned int>
side-effects volatile unsigned DI pr99168.c:6:26
size <integer_cst 0x7fffe9802f60 constant 64>
unit-size <integer_cst 0x7fffe9802f78 constant 8>
align:64 warn_if_not_align:0 offset_align 1024 decl_not_flexarray:
1
offset <integer_cst 0x7fffe9802f90 constant 0>
bit-offset <integer_cst 0x7fffe9802fd8 constant 0> context
<record_type 0x7fffe99ff150 my_struct>>
chain <type_decl 0x7fffe982c820 D.3395>>
readonly used static read BLK pr99168.c:10:25 size <integer_cst
0x7fffe99f8348 1024> unit-size <integer_cst 0x7fffe9611db0 128>
align:1024 warn_if_not_align:0 context <translation_unit_decl
0x7fffe963b200 pr99168.c> initial <constructor 0x7fffe9611f00> chain <var_decl
0x7fffe963c000 variables2>>
(gdb)
