https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82823
Bug ID: 82823
Summary: ICE in ix86_expand_prologue, at
config/i386/i386.c:13171
Product: gcc
Version: unknown
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: law at gcc dot gnu.org
Target Milestone: ---
Host: x86_64-linux-gnu
Target: i686-linux-gnu
Starting from r252998 we ICE on following valid code:
$ cat ice2.ii
class a
{
public:
~a ();
int b;
};
class c
{
public:
a m_fn1 ();
};
class d
{
int e ();
c f;
};
int
d::e ()
{
return f.m_fn1 ().b;
}
$ g++ -c -O1 -fstack-clash-protection -march=i686 ice2.ii -m32 -c
during RTL pass: pro_and_epilogue
ice2.ii: In member function ‘int d::e()’:
ice2.ii:21:1: internal compiler error: in ix86_expand_prologue, at
config/i386/i386.c:13171
}
^
0x16247c3 ix86_expand_prologue()
../../gcc/config/i386/i386.c:13171
0x1985ad2 gen_prologue()
../../gcc/config/i386/i386.md:13135
0x160281a target_gen_prologue
../../gcc/config/i386/i386.md:19431
0xe251b4 make_prologue_seq
../../gcc/function.c:5879
0xe25394 thread_prologue_and_epilogue_insns()
../../gcc/function.c:5996
0xe263a0 rest_of_handle_thread_prologue_and_epilogue
../../gcc/function.c:6487
0xe26422 execute
../../gcc/function.c:6529
