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590e85b575
These routines do not require executable stacks. However, by default ELFish linkers may assume an executable stack on GNUish environments (and some non-GNU ones too!). The GNU extension to add a note to indicate a non-executable stack is honoured by these environments to mark the stack as non-executable (the compiler normally emits this directive on appropriate targets whenever possible). This allows normal builds from getting executable stacks due to linking to the compiler rt builtins. llvm-svn: 273500
30 lines
935 B
ArmAsm
30 lines
935 B
ArmAsm
//===-- floatunssisfvfp.S - Implement floatunssisfvfp ---------------------===//
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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 __floatunssisfvfp(unsigned int 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 result is
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// return 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(__floatunssisfvfp)
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vmov s15, r0 // move int to float register s15
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vcvt.f32.u32 s15, s15 // convert 32-bit int in s15 to float in s15
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vmov r0, s15 // move s15 to result register
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bx lr
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END_COMPILERRT_FUNCTION(__floatunssisfvfp)
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NO_EXEC_STACK_DIRECTIVE
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