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40 lines
692 B
40 lines
692 B
7 months ago
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#include "../assembly.h"
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// float __floatundisf(du_int a);
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#ifdef __x86_64__
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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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