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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#include "../assembly.h"
// _chkstk routine
// This routine is windows specific
// http://msdn.microsoft.com/en-us/library/ms648426.aspx
#ifdef __i386__
.text
.balign 4
DEFINE_COMPILERRT_FUNCTION(__chkstk_ms)
push %ecx
push %eax
cmp $0x1000,%eax
lea 12(%esp),%ecx
jb 1f
2:
sub $0x1000,%ecx
test %ecx,(%ecx)
sub $0x1000,%eax
cmp $0x1000,%eax
ja 2b
1:
sub %eax,%ecx
test %ecx,(%ecx)
pop %eax
pop %ecx
ret
END_COMPILERRT_FUNCTION(__chkstk_ms)
#endif // __i386__
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