| commit | 34f939218ce78163171addd63750e1e0300376ab | |
| author | Pranith Kumar <bobby.prani@gmail.com> | |
| Tue, 23 Aug 2016 13:48:25 +0000 (23 09:48 -0400) | ||
| committer | Richard Henderson <rth@twiddle.net> | |
| Fri, 16 Sep 2016 15:12:12 +0000 (16 08:12 -0700) | ||
| tree | b753d7c12df7c6c955bc93e3947c97cd7428125b | treesnapshot (tar.gz zip) |
| parent | cc19e497a047193db5083425957d7292c8dd3226 | commitdiff |
tcg: Optimize fence instructions
This commit optimizes fence instructions. Two optimizations are
currently implemented: (1) unnecessary duplicate fence instructions,
and (2) merging weaker fences into a stronger fence.
[rth: Merge tcg_optimize_mb back into tcg_optimize, so that we only
loop over the opcode stream once. Merge "unrelated" weaker barriers
into one stronger barrier.]
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Message-Id: <20160823134825.32578-1-bobby.prani@gmail.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit optimizes fence instructions. Two optimizations are
currently implemented: (1) unnecessary duplicate fence instructions,
and (2) merging weaker fences into a stronger fence.
[rth: Merge tcg_optimize_mb back into tcg_optimize, so that we only
loop over the opcode stream once. Merge "unrelated" weaker barriers
into one stronger barrier.]
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Message-Id: <20160823134825.32578-1-bobby.prani@gmail.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
| tcg/optimize.c | diffblobblamehistory |