[Mono-bugs] [Bug 362598] Inline String.IsNullOrEmpty() calls

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Mon Feb 18 18:34:35 EST 2008


User rkumpera at novell.com added comment

Rodrigo Kumpera <rkumpera at novell.com> changed:

           What    |Removed                                         |Added
                 CC|                                                |rkumpera at novell.com
             Status|NEW                                             |NEEDINFO
      Info Provider|                                                |msafar at novell.com

--- Comment #1 from Rodrigo Kumpera <rkumpera at novell.com>  2008-02-18 16:34:34 MST ---
String.IsNullOrEmpty is not inlinable for two reasons, it calls
String::get_Length and code length is bigger than 20 bytes.

The first issue can be solved by using String::length directly, but the second
requires that either the max inlinable method code size is increased on the JIT
side or mcs emits a shorter code sequence.

MCS always use the long form of branching opcode. Fixing this would save 6
bytes and have String.IsNullOrEmpty inlined.

How hard it would be to fix that on mcs?

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