31 lines
944 B
ArmAsm
31 lines
944 B
ArmAsm
//===-- subsf3vfp.S - Implement subsf3vfp ---------------------------------===//
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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 __subsf3vfp(float a, float b);
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//
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// Returns the difference between two single precision floating point numbers
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// using the Darwin calling convention where single arguments are passsed
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// 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(__subsf3vfp)
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vmov s14, r0 // move first param from r0 into float register
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vmov s15, r1 // move second param from r1 into float register
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vsub.f32 s14, s14, s15
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vmov r0, s14 // move result back to r0
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bx lr
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END_COMPILERRT_FUNCTION(__subsf3vfp)
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NO_EXEC_STACK_DIRECTIVE
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