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add SDNPMayLoad to the 'load' sdnode definition. This is enough to get all the x86

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instructions (with patterns) that load memory marked, for example.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45818 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2008-01-10 04:44:32 +00:00
parent 710e995889
commit 8947dd539e
1 changed files with 3 additions and 1 deletions
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4
lib/Target/TargetSelectionDAG.td
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@ -190,6 +190,7 @@ def SDNPOutFlag : SDNodeProperty; // Write a flag result
def SDNPInFlag : SDNodeProperty; // Read a flag operand
def SDNPOptInFlag : SDNodeProperty; // Optionally read a flag operand
def SDNPMayStore : SDNodeProperty; // May write to memory, sets 'mayStore'.
def SDNPMayLoad : SDNodeProperty; // May read memory, sets 'mayLoad'.
//===----------------------------------------------------------------------===//
// Selection DAG Node definitions.
@ -313,7 +314,8 @@ def ret : SDNode<"ISD::RET" , SDTRet, [SDNPHasChain]>;
// Do not use ld, st directly. Use load, extload, sextload, zextload, store,
// and truncst (see below).
def ld : SDNode<"ISD::LOAD" , SDTLoad, [SDNPHasChain]>;
def ld : SDNode<"ISD::LOAD" , SDTLoad,
[SDNPHasChain, SDNPMayLoad]>;
def st : SDNode<"ISD::STORE" , SDTStore,
[SDNPHasChain, SDNPMayStore]>;
def ist : SDNode<"ISD::STORE" , SDTIStore,