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| author | Dale Johannesen <dalej@apple.com> | 2010-06-03 21:09:53 +0000 |
|---|---|---|
| committer | Dale Johannesen <dalej@apple.com> | 2010-06-03 21:09:53 +0000 |
| commit | d679ff7330e7824da54c8abe6a1a4ab175f3f0ba (patch) | |
| tree | f321d3a8a29a98b4bdf537d99518251ba8287ac2 /llvm/utils/TableGen/ARMDecoderEmitter.cpp | |
| parent | 91a3d27ec0a586e5068df28b026d7e6cba626488 (diff) | |
| download | bcm5719-llvm-d679ff7330e7824da54c8abe6a1a4ab175f3f0ba.tar.gz bcm5719-llvm-d679ff7330e7824da54c8abe6a1a4ab175f3f0ba.zip | |
Early implementation of tail call for ARM.
A temporary flag -arm-tail-calls defaults to off,
so there is no functional change by default.
Intrepid users may try this; simple cases work
but there are bugs.
llvm-svn: 105413
Diffstat (limited to 'llvm/utils/TableGen/ARMDecoderEmitter.cpp')
| -rw-r--r-- | llvm/utils/TableGen/ARMDecoderEmitter.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/utils/TableGen/ARMDecoderEmitter.cpp b/llvm/utils/TableGen/ARMDecoderEmitter.cpp index c879a54b355..5f154b6f5b1 100644 --- a/llvm/utils/TableGen/ARMDecoderEmitter.cpp +++ b/llvm/utils/TableGen/ARMDecoderEmitter.cpp @@ -1575,6 +1575,13 @@ bool ARMDecoderEmitter::ARMDEBackend::populateInstruction( if (Name == "BXr9" || Name == "BMOVPCRX" || Name == "BMOVPCRXr9") return false; + // Tail calls are other patterns that generate existing instructions. + if (Name == "TCRETURNdi" || Name == "TCRETURNdiND" || + Name == "TCRETURNri" || Name == "TCRETURNriND" || + Name == "TAILJMPd" || Name == "TAILJMPdND" || + Name == "TAILJMPr" || Name == "TAILJMPrND") + return false; + // VLDMQ/VSTMQ can be hanlded with the more generic VLDMD/VSTMD. if (Name == "VLDMQ" || Name == "VLDMQ_UPD" || Name == "VSTMQ" || Name == "VSTMQ_UPD") |
