forked from OSchip/llvm-project
30 lines
883 B
ArmAsm
30 lines
883 B
ArmAsm
//===-- negdf2vfp.S - Implement negdf2vfp ---------------------------------===//
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//
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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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//
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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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.p2align 2
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DEFINE_COMPILERRT_FUNCTION(__negdf2vfp)
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#if defined(COMPILER_RT_ARMHF_TARGET)
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vneg.f64 d0, d0
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#else
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eor r1, r1, #-2147483648 // flip sign bit on double in r0/r1 pair
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#endif
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bx lr
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END_COMPILERRT_FUNCTION(__negdf2vfp)
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NO_EXEC_STACK_DIRECTIVE
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