23 lines
738 B
ArmAsm
23 lines
738 B
ArmAsm
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//===-- negdf2vfp.S - Implement negdf2vfp ---------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// 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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//
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//===----------------------------------------------------------------------===//
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#include "../assembly.h"
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//
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// extern double __negdf2vfp(double a, double b);
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//
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// Returns the negation a double precision floating point numbers using the
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// Darwin calling convention where double arguments are passsed in GPR pairs.
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//
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.syntax unified
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.align 2
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DEFINE_COMPILERRT_FUNCTION(__negdf2vfp)
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eor r1, r1, #-2147483648 // flip sign bit on double in r0/r1 pair
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bx lr
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