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// This file is dual licensed under the MIT and the University of Illinois Open 
// Source Licenses. See LICENSE.TXT for details. 
 
#include "../assembly.h" 
 
// float __floatundisf(du_int a); 
 
#ifdef __x86_64__ 
 
CONST_SECTION 
 
	.balign 16 
two: 
	.single 2.0 
 
#define REL_ADDR(_a)	(_a)(%rip) 
 
.text 
.balign 4 
DEFINE_COMPILERRT_FUNCTION(__floatundisf) 
	movq		$1,			%rsi 
	testq		%rdi,		%rdi 
	js			1f 
	cvtsi2ssq	%rdi,		%xmm0 
	ret 
	 
1:	andq		%rdi,		%rsi 
	shrq		%rdi 
	orq			%rsi,		%rdi 
	cvtsi2ssq	%rdi,		%xmm0 
	mulss	REL_ADDR(two),	%xmm0 
	ret 
END_COMPILERRT_FUNCTION(__floatundisf) 
 
#endif // __x86_64__