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Fix some ascii art in a comment to not have trailing backslashes (inspiration

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from IfConversion.cc), and fix some spelling and grammar in the surrounding
prose.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159699 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matt Beaumont-Gay 2012-07-04 01:09:45 +00:00
parent 59bde4d8a1
commit 00f43076a3
1 changed files with 5 additions and 5 deletions
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10
lib/CodeGen/EarlyIfConversion.cpp
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@ -52,21 +52,21 @@ typedef SmallSetVector<MachineBasicBlock*, 8> BlockSetVector;
//===----------------------------------------------------------------------===//
//
// The SSAIfConv class performs if-conversion on SSA form machine code after
// determining if it is possible. The class contains no heuristics, external
// determining if it is possible. The class contains no heuristics; external
// code should be used to determine when if-conversion is a good idea.
//
// SSAIfConv con convert both triangles and diamonds:
// SSAIfConv can convert both triangles and diamonds:
//
// Triangle: Head Diamond: Head
// | \ / \
// | \ / \
// | \ / \_
// | \ / |
// | [TF]BB FBB TBB
// | / \ /
// | / \ /
// Tail Tail
//
// Instructions in the conditional blocks TBB and/or FBB are spliced into the
// Head block, and phis in the Tail black are converted to select instruction.
// Head block, and phis in the Tail block are converted to select instructions.
//
namespace {
class SSAIfConv {