diff options
| -rw-r--r-- | utils/TableGen/DAGISelMatcherGen.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/utils/TableGen/DAGISelMatcherGen.cpp b/utils/TableGen/DAGISelMatcherGen.cpp index 2ac7b87e70..aed222c094 100644 --- a/utils/TableGen/DAGISelMatcherGen.cpp +++ b/utils/TableGen/DAGISelMatcherGen.cpp @@ -690,6 +690,13 @@ EmitResultInstructionAsOperand(const TreePatternNode *N, bool NodeHasChain = InstPatNode && InstPatNode->TreeHasProperty(SDNPHasChain, CGP); + // Instructions which load and store from memory should have a chain, + // regardless of whether they happen to have an internal pattern saying so. + if (Pattern.getSrcPattern()->TreeHasProperty(SDNPHasChain, CGP) + && (II.hasCtrlDep || II.mayLoad || II.mayStore || II.canFoldAsLoad || + II.hasSideEffects)) + NodeHasChain = true; + bool isRoot = N == Pattern.getDstPattern(); // TreeHasOutGlue - True if this tree has glue. |