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[WebAssembly] Add some whitespace to WebAssemblyFixIrreducibleControlFlow

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Differential Revision: https://reviews.llvm.org/D59855

modified:   llvm/lib/Target/WebAssembly/WebAssemblyFixIrreducibleControlFlow.cpp
llvm-svn: 357117
This commit is contained in:
Alon Zakai 2019-03-27 20:12:42 +00:00
parent c6dfaa0e83
commit e9e01cc73a
1 changed files with 2 additions and 0 deletions
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llvm/lib/Target/WebAssembly/WebAssemblyFixIrreducibleControlFlow.cpp
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@ -26,6 +26,7 @@
/// single entry in the loop containing the previous multiple entries. After
/// ensuring all the loops in a region are reducible, we recurse into them. The
/// total time complexity of this pass is:
///
/// O(NumBlocks * NumNestedLoops * NumIrreducibleLoops +
/// NumLoops * NumLoops)
///
@ -38,6 +39,7 @@
/// irreducibility. The graph algorithms for finding loops and entries and so
/// forth are also similar to the Relooper. The main differences between this
/// pass and the Relooper are:
///
/// * We just care about irreducibility, so we just look at loops.
/// * The Relooper emits structured control flow (with ifs etc.), while we
/// emit a CFG.