2009-06-27 00:47:03 +08:00
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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2009-10-28 01:49:50 +08:00
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#include "../assembly.h"
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2009-06-27 00:47:03 +08:00
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// float __floatundisf(du_int a);
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#ifdef __x86_64__
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.literal4
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two: .single 2.0
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#define REL_ADDR(_a) (_a)(%rip)
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.text
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.align 4
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2009-10-28 01:50:21 +08:00
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DEFINE_COMPILERRT_FUNCTION(__floatundisf)
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2009-06-27 00:47:03 +08:00
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movq $1, %rsi
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testq %rdi, %rdi
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js 1f
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cvtsi2ssq %rdi, %xmm0
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ret
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1: andq %rdi, %rsi
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shrq %rdi
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orq %rsi, %rdi
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cvtsi2ssq %rdi, %xmm0
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mulss REL_ADDR(two), %xmm0
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ret
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#endif // __x86_64__
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