Louis Gerbarg 7d54c5b0f2 Make sure no loads resulting from load->switch DAGCombine are marked invariant ... Currently when DAGCombine converts loads feeding a switch into a switch of addresses feeding a load the new load inherits the isInvariant flag of the left side. This is incorrect since invariant loads can be reordered in cases where it is illegal to reoarder normal loads. This patch adds an isInvariant parameter to getExtLoad() and updates all call sites to pass in the data if they have it or false if they don't. It also changes the DAGCombine to use that data to make the right decision when creating the new load. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214449 91177308-0d34-0410-b5e6-96231b3b80d8		2014-07-31 21:45:05 +00:00
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llvm	Make sure no loads resulting from load->switch DAGCombine are marked invariant	2014-07-31 21:45:05 +00:00
llvm-c	Add scoped-noalias metadata	2014-07-24 14:25:39 +00:00