25 lines
816 B
ArmAsm
25 lines
816 B
ArmAsm
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//===-- floatsidfvfp.S - Implement floatsidfvfp ---------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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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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//
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//===----------------------------------------------------------------------===//
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#include "../assembly.h"
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//
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// extern double __floatsidfvfp(int a);
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//
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// Converts a 32-bit int to a double precision float.
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// Uses Darwin calling convention where a double precision result is
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// return in GPR register pair.
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//
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.align 2
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DEFINE_COMPILERRT_FUNCTION(__floatsidfvfp)
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fmsr s15, r0 // move int to float register s15
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fsitod d7, s15 // convert 32-bit int in s15 to double in d7
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fmrrd r0, r1, d7 // move d7 to result register pair r0/r1
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bx lr
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