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Justine Tunney 2020-06-15 07:18:57 -07:00
commit c91b3c5006
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third_party/compiler_rt/nexgen32e/floatundisf.S vendored Normal file
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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 "third_party/compiler_rt/assembly.h"
// float __floatundisf(du_int a);
#ifdef __x86_64__
.section .yoink
nop huge_compiler_rt_license
.previous
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__
NO_EXEC_STACK_DIRECTIVE