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(parent: b7be0e8) | patch
Add an x86 peep that narrows TEST instructions to forms that use
authorDan Gohman <gohman@apple.com>
Wed, 19 Aug 2009 18:16:17 +0000 (18:16 +0000)
committerDan Gohman <gohman@apple.com>
Wed, 19 Aug 2009 18:16:17 +0000 (18:16 +0000)
commit6a402dc952ccad3f8fd0d9e272dbdd261f50854e
treece5b352f432a1f7886d72ec86ab2d169f36b9b62tree | snapshot
parentb7be0e8afc5378c77c70e3c0fb6a03c74e551688commit | diff
Add an x86 peep that narrows TEST instructions to forms that use
a smaller encoding. These kinds of patterns are very frequent in
sqlite3, for example.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79439 91177308-0d34-0410-b5e6-96231b3b80d8
include/llvm/CodeGen/SelectionDAG.h diff | blob | history
lib/CodeGen/SelectionDAG/SelectionDAG.cpp diff | blob | history
lib/Target/X86/X86ISelDAGToDAG.cpp diff | blob | history
test/CodeGen/X86/live-out-reg-info.ll diff | blob | history
test/CodeGen/X86/test-shrink.ll [new file with mode: 0644] blob
C/C++ LLVM-based compilers that forbids OOTA behaviors