43 lines
701 B
ArmAsm
43 lines
701 B
ArmAsm
// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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#include "third_party/compiler_rt/assembly.h"
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// float __floatundisf(du_int a);
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#ifdef __x86_64__
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.section .yoink
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nop huge_compiler_rt_license
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.previous
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CONST_SECTION
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.balign 16
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two:
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.single 2.0
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#define REL_ADDR(_a) (_a)(%rip)
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.text
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.balign 4
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DEFINE_COMPILERRT_FUNCTION(__floatundisf)
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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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END_COMPILERRT_FUNCTION(__floatundisf)
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#endif // __x86_64__
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NO_EXEC_STACK_DIRECTIVE
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