forked from OSchip/llvm-project
31 lines
856 B
ArmAsm
31 lines
856 B
ArmAsm
//===-- negsf2vfp.S - Implement negsf2vfp ---------------------------------===//
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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 float __negsf2vfp(float a);
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//
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// Returns the negation of a single precision floating point numbers using the
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// Darwin calling convention where single arguments are passsed like 32-bit ints
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//
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.syntax unified
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.p2align 2
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DEFINE_COMPILERRT_FUNCTION(__negsf2vfp)
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#if defined(COMPILER_RT_ARMHF_TARGET)
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vneg.f32 s0, s0
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#else
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eor r0, r0, #-2147483648 // flip sign bit on float in r0
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#endif
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bx lr
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END_COMPILERRT_FUNCTION(__negsf2vfp)
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NO_EXEC_STACK_DIRECTIVE
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