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fix a long standing wart: all the ComplexPattern's were being

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passed the root of the match, even though only a few patterns
actually needed this (one in X86, several in ARM [which should
be refactored anyway], and some in CellSPU that I don't feel 
like detangling).   Instead of requiring all ComplexPatterns to
take the dead root, have targets opt into getting the root by
putting SDNPWantRoot on the ComplexPattern.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114471 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2010-09-21 20:31:19 +00:00
parent 7c72707216
commit 52a261b3c1
20 changed files with 142 additions and 141 deletions
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2
include/llvm/Target/TargetSelectionDAG.td
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@@ -224,6 +224,8 @@ def SDNPMayLoad : SDNodeProperty; // May read memory, sets 'mayLoad'.
def SDNPSideEffect : SDNodeProperty; // Sets 'HasUnmodelledSideEffects'.
def SDNPMemOperand : SDNodeProperty; // Touches memory, has assoc MemOperand
def SDNPVariadic : SDNodeProperty; // Node has variable arguments.
def SDNPWantRoot : SDNodeProperty; // ComplexPattern gets the root of match
def SDNPWantParent : SDNodeProperty; // ComplexPattern gets the parent
//===----------------------------------------------------------------------===//
// Selection DAG Node definitions.