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author | Jim Grosbach <grosbach@apple.com> | 2011-03-11 02:19:02 +0000 |
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committer | Jim Grosbach <grosbach@apple.com> | 2011-03-11 02:19:02 +0000 |
commit | 4a6d735105ffac5f58499ef5a5de8713b458b233 (patch) | |
tree | ad4e2d200aea58d68c8bc43b33221dddff7a0d55 /utils/TableGen/DAGISelEmitter.cpp | |
parent | 109d6dbe50753f102566cd4895b69fd13f62efa4 (diff) | |
download | llvm-4a6d735105ffac5f58499ef5a5de8713b458b233.tar.gz llvm-4a6d735105ffac5f58499ef5a5de8713b458b233.tar.bz2 llvm-4a6d735105ffac5f58499ef5a5de8713b458b233.tar.xz |
Teach TableGen to pre-calculate register enum values when creating the
CodeGenRegister entries. Use this information to more intelligently build
the literal register entires in the DAGISel matcher table. Specifically,
use a single-byte OPC_EmitRegister entry for registers with a value of
less than 256 and OPC_EmitRegister2 entry for registers with a larger value.
rdar://9066491
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127456 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'utils/TableGen/DAGISelEmitter.cpp')
-rw-r--r-- | utils/TableGen/DAGISelEmitter.cpp | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/utils/TableGen/DAGISelEmitter.cpp b/utils/TableGen/DAGISelEmitter.cpp index dee8f7731f..d66ae96cbc 100644 --- a/utils/TableGen/DAGISelEmitter.cpp +++ b/utils/TableGen/DAGISelEmitter.cpp @@ -148,12 +148,8 @@ void DAGISelEmitter::run(raw_ostream &OS) { Matcher *TheMatcher = new ScopeMatcher(&PatternMatchers[0], PatternMatchers.size()); - CodeGenTarget Target(Records); - const std::vector<CodeGenRegister> &Registers = Target.getRegisters(); - bool useEmitRegister2 = Registers.size() > 255; - TheMatcher = OptimizeMatcher(TheMatcher, CGP); //Matcher->dump(); - EmitMatcherTable(TheMatcher, CGP, useEmitRegister2, OS); + EmitMatcherTable(TheMatcher, CGP, OS); delete TheMatcher; } |