diff options
| author | Duncan Sands <baldrick@free.fr> | 2008-07-15 10:18:22 +0000 |
|---|---|---|
| committer | Duncan Sands <baldrick@free.fr> | 2008-07-15 10:18:22 +0000 |
| commit | c07e6e53f757da1a7c79c66ed53f2844de85a77e (patch) | |
| tree | d3be28c4d75b04313200253e8c5b3df57b5b0356 /lib/CodeGen/SelectionDAG/LegalizeTypes.h | |
| parent | 8d56a6f4d8b010d4c582225a08ece971613f6fe3 (diff) | |
LegalizeTypes support for promotion of bswap.
In LegalizeDAG the value is zero-extended to
the new type before byte swapping. It doesn't
matter how the extension is done since the new
bits are shifted off anyway after the swap, so
extend by any old rubbish bits. This results
in the final assembler for the testcase being
one line shorter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53604 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/LegalizeTypes.h')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeTypes.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeTypes.h b/lib/CodeGen/SelectionDAG/LegalizeTypes.h index 8e7462ff6f..3aa5ca297c 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeTypes.h +++ b/lib/CodeGen/SelectionDAG/LegalizeTypes.h @@ -213,6 +213,7 @@ private: // Integer Result Promotion. void PromoteIntegerResult(SDNode *N, unsigned ResNo); SDOperand PromoteIntRes_BIT_CONVERT(SDNode *N); + SDOperand PromoteIntRes_BSWAP(SDNode *N); SDOperand PromoteIntRes_BUILD_PAIR(SDNode *N); SDOperand PromoteIntRes_Constant(SDNode *N); SDOperand PromoteIntRes_CTLZ(SDNode *N); |