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| author | Chris Lattner <sabre@nondot.org> | 2010-10-04 16:46:07 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-10-04 16:46:07 +0000 |
| commit | dc38ad4aee16905908fe11a6713f27f0305767b9 (patch) | |
| tree | 551cafbe27f84e178ab82d33a07c7e12ec2bcbf7 | |
| parent | f32a446bc8a9f9a678e0de6890c7752a8f4e8885 (diff) | |
| download | bcm5719-llvm-dc38ad4aee16905908fe11a6713f27f0305767b9.tar.gz bcm5719-llvm-dc38ad4aee16905908fe11a6713f27f0305767b9.zip | |
scheduler update
llvm-svn: 115515
| -rw-r--r-- | llvm/docs/ReleaseNotes.html | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/llvm/docs/ReleaseNotes.html b/llvm/docs/ReleaseNotes.html index 2be134940d3..3b68a3298bc 100644 --- a/llvm/docs/ReleaseNotes.html +++ b/llvm/docs/ReleaseNotes.html @@ -734,12 +734,11 @@ it run faster:</p> is available from a previous instruction.</li> <li>Atomic operations now get legalized into simpler atomic operations if not natively supported, easing the implementation burden on targets.</li> -<li>The bottom-up pre-allocation scheduler is now register pressure aware, - allowing it to avoid overscheduling in high pressure situations while still - aggressively scheduling when registers are available.</li> -<li>A new instruction-level-parallelism pre-allocation scheduler is available, - which is also register pressure aware. This scheduler has shown substantial - wins on X86-64 and is on by default.</li> +<li>We have added two new bottom-up pre-allocation register pressure aware schedulers: +<ol> +<li>The hybrid scheduler schedules aggressively to minimize schedule length when registers are available and avoid overscheduling in high pressure situations.</li> +<li>The instruction-level-parallelism scheduler schedules for maximum ILP when registers are available and avoid overscheduling in high pressure situations.</li> +</ol></li> <li>The tblgen type inference algorithm was rewritten to be more consistent and diagnose more target bugs. If you have an out-of-tree backend, you may find that it finds bugs in your target description. This support also |

