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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-11-28 18:03:11 +0000 |
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| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-11-28 18:03:11 +0000 |
| commit | 87f95dc8523a0d9f0e021f4af32e34675e79caf4 (patch) | |
| tree | 496f475210128051dbfa75ce48065335977c7ff7 /docs | |
| parent | 30c5fa24996d5945687bef2acc3b2ac1ef00f334 (diff) | |
| download | llvm-87f95dc8523a0d9f0e021f4af32e34675e79caf4.tar.gz llvm-87f95dc8523a0d9f0e021f4af32e34675e79caf4.tar.bz2 llvm-87f95dc8523a0d9f0e021f4af32e34675e79caf4.tar.xz | |
Explain what ExeDepsFix does.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145253 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/ReleaseNotes.html | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html index e3b3bae9c2..435bd93266 100644 --- a/docs/ReleaseNotes.html +++ b/docs/ReleaseNotes.html @@ -942,9 +942,12 @@ be used to verify some algorithms. comparisons, turning them into various optimized code sequences (e.g. using the SSE4/AVX "blend" instructions).</li> <li>The SSE execution domain fix pass and the ARM NEON move fix pass have been - merged to a target independent execution dependency fix pass. Targets can - override the <code>getExecutionDomain</code> and - <code>setExecutionDomain</code> hooks to use it.</li> + merged to a target independent execution dependency fix pass. This pass is + used to select alternative equivalent opcodes in a way that minimizes + execution domain crossings. Closely connected instructions are moved to + the same execution domain when possible. Targets can override the + <code>getExecutionDomain</code> and <code>setExecutionDomain</code> hooks + to use the pass.</li> </ul> </div> |