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Explain what ExeDepsFix does.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145253 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -942,9 +942,12 @@ be used to verify some algorithms.
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comparisons, turning them into various optimized code sequences (e.g.
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using the SSE4/AVX "blend" instructions).</li>
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<li>The SSE execution domain fix pass and the ARM NEON move fix pass have been
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merged to a target independent execution dependency fix pass. Targets can
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override the <code>getExecutionDomain</code> and
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<code>setExecutionDomain</code> hooks to use it.</li>
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merged to a target independent execution dependency fix pass. This pass is
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used to select alternative equivalent opcodes in a way that minimizes
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execution domain crossings. Closely connected instructions are moved to
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the same execution domain when possible. Targets can override the
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<code>getExecutionDomain</code> and <code>setExecutionDomain</code> hooks
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to use the pass.</li>
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</ul>
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</div>
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