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[Bug tree-optimization/61090] New: [4.10 Regression] ICE in build_ref_for_offset
- From: "asolokha at gmx dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 07 May 2014 02:41:35 +0000
- Subject: [Bug tree-optimization/61090] New: [4.10 Regression] ICE in build_ref_for_offset
- Auto-submitted: auto-generated
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61090
Bug ID: 61090
Summary: [4.10 Regression] ICE in build_ref_for_offset
Product: gcc
Version: 4.10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
gcc 4.10.0-alpha20140504 fails when compiling the following code w/ -O1:
struct i {
int c;
};
static int
p(struct i a)
{
return 0;
}
void
h(void)
{
struct i z[] = {{ 0 }};
int e[] = {};
int x;
e[0] = p(z[x]) + z[x].c;
}
However, 4.10.0-alpha20140411 compiles it just fine.
It seems there's a stack corruption as gdb backtrace shows the following:
----8<----
0x00000000009036be <+430>: mov %rcx,0x8(%rsp)
0x00000000009036c3 <+435>: mov $0x1,%edx
0x00000000009036c8 <+440>: mov %rax,%rsi
0x00000000009036cb <+443>: mov (%rsp),%rdi
0x00000000009036cf <+447>: callq 0x7166c8
<_Z17gsi_insert_beforeP20gimple_stmt_iteratorP21gimple_statement_base19gsi_iterator_update>
=> 0x00000000009036d4 <+452>: mov 0x8(%rsp),%rcx
0x00000000009036d9 <+457>: mov %rcx,(%rsp)
0x00000000009036dd <+461>: mov %rbp,%rdi
0x00000000009036e0 <+464>: callq 0x5e905e
<_Z24reference_alias_ptr_typeP9tree_node>
---->8----