Evan Cheng da40bcab44 More fcopysign correctness and performance fix.
The previous codegen for the slow path (when values are in VFP / NEON
registers) was incorrect if the source is NaN.

The new codegen uses NEON vbsl instruction to copy the sign bit. e.g.
        vmov.i32        d1, #0x80000000
        vbsl    d1, d2, d0
If NEON is not available, it uses integer instructions to copy the sign bit.
rdar://9034702

llvm-svn: 126295
2011-02-23 02:24:55 +00:00
2011-02-22 15:40:20 +00:00
2010-12-12 21:42:01 +00:00
2011-01-29 01:09:53 +00:00
2011-02-22 15:40:20 +00:00
2007-08-03 05:43:35 +00:00
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2010-01-09 18:40:31 +00:00
2007-07-13 09:48:29 +00:00
2010-11-29 18:16:10 +00:00
2011-02-11 19:11:57 +00:00

Low Level Virtual Machine (LLVM)
================================

This directory and its subdirectories contain source code for the Low Level
Virtual Machine, a toolkit for the construction of highly optimized compilers,
optimizers, and runtime environments.

LLVM is open source software. You may freely distribute it under the terms of
the license agreement found in LICENSE.txt.

Please see the HTML documentation provided in docs/index.html for further
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Description
Fork of llvm with experimental commits and workarounds for RPCS3
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