File: ltsf2vfp.S

package info (click to toggle)
llvm-toolchain-3.5 1%3A3.5.2-3~bpo8%2B2
  • links: PTS, VCS
  • area: main
  • in suites: jessie-backports
  • size: 283,276 kB
  • sloc: cpp: 1,884,580; ansic: 310,787; objc: 86,612; python: 79,608; asm: 65,866; sh: 9,829; makefile: 6,068; perl: 5,589; ml: 5,254; pascal: 3,285; lisp: 1,640; xml: 686; cs: 239; csh: 117
file content (29 lines) | stat: -rw-r--r-- 914 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
//===-- ltsf2vfp.S - Implement ltsf2vfp -----------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#include "../assembly.h"

//
// extern int __ltsf2vfp(float a, float b);
//
// Returns one iff a < b and neither is NaN.
// Uses Darwin calling convention where single precision arguments are passsed 
// like 32-bit ints
//
	.syntax unified
	.p2align 2
DEFINE_COMPILERRT_FUNCTION(__ltsf2vfp)
	vmov	s14, r0     // move from GPR 0 to float register
	vmov	s15, r1     // move from GPR 1 to float register
	vcmp.f32 s14, s15
	vmrs	apsr_nzcv, fpscr
	movmi	r0, #1      // set result register to 1 if equal
	movpl	r0, #0
	bx	lr
END_COMPILERRT_FUNCTION(__ltsf2vfp)