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| author | Pat Gavlin <pagavlin@microsoft.com> | 2017-04-13 16:37:33 -0700 |
|---|---|---|
| committer | Pat Gavlin <pagavlin@microsoft.com> | 2017-04-13 16:37:33 -0700 |
| commit | 18e2c4ae47893c0f2ffdf19280f27d538ad9d4c1 (patch) | |
| tree | d142ec9dd0270d7a2e69cb68e597049c06a29589 /src | |
| parent | 583713bd78ab202c62ba6beec83db2204bd0a361 (diff) | |
| download | coreclr-18e2c4ae47893c0f2ffdf19280f27d538ad9d4c1.tar.gz coreclr-18e2c4ae47893c0f2ffdf19280f27d538ad9d4c1.tar.bz2 coreclr-18e2c4ae47893c0f2ffdf19280f27d538ad9d4c1.zip | |
Preserve VNs in fgMorphIntoHelperCall.
This method is used to transform a node into a semantically-equivalent
helper call, and should preserve any value numbers that are present on
the the node.
Diffstat (limited to 'src')
| -rw-r--r-- | src/jit/morph.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/jit/morph.cpp b/src/jit/morph.cpp index 92d5e0967e..308eaf04ee 100644 --- a/src/jit/morph.cpp +++ b/src/jit/morph.cpp @@ -60,7 +60,8 @@ GenTreePtr Compiler::fgMorphCastIntoHelper(GenTreePtr tree, int helper, GenTreeP GenTreePtr Compiler::fgMorphIntoHelperCall(GenTreePtr tree, int helper, GenTreeArgList* args) { - tree->ChangeOper(GT_CALL); + // The helper call ought to be semantically equivalent to the original node, so preserve its VN. + tree->ChangeOper(GT_CALL, GenTree::PRESERVE_VN); tree->gtFlags |= GTF_CALL; if (args) |