35 lines
984 B
ArmAsm
35 lines
984 B
ArmAsm
//===-- fixsfsivfp.S - Implement fixsfsivfp -----------------------===//
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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 int __fixsfsivfp(float a);
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//
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// Converts single precision float to a 32-bit int rounding towards zero.
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// Uses Darwin calling convention where a single precision parameter is
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// passed in a GPR..
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//
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.syntax unified
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.p2align 2
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DEFINE_COMPILERRT_FUNCTION(__fixsfsivfp)
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#if defined(COMPILER_RT_ARMHF_TARGET)
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vcvt.s32.f32 s0, s0
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vmov r0, s0
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#else
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vmov s15, r0 // load float register from R0
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vcvt.s32.f32 s15, s15 // convert single to 32-bit int into s15
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vmov r0, s15 // move s15 to result register
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#endif
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bx lr
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END_COMPILERRT_FUNCTION(__fixsfsivfp)
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NO_EXEC_STACK_DIRECTIVE
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