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| author | Andy Ayers <andya@microsoft.com> | 2017-09-13 23:13:25 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-09-13 23:13:25 -0700 |
| commit | 089dd5bda7e724ad6fa60bc0009c9cca128fe902 (patch) | |
| tree | a40706137faf67abf3cf48effb3340530651d16e | |
| parent | 7187a02f479187e8ea6692445dbf3649a4f124c0 (diff) | |
| download | coreclr-089dd5bda7e724ad6fa60bc0009c9cca128fe902.tar.gz coreclr-089dd5bda7e724ad6fa60bc0009c9cca128fe902.tar.bz2 coreclr-089dd5bda7e724ad6fa60bc0009c9cca128fe902.zip | |
JIT: mark part of runtime lookup tree as nonfaulting and invariant (#13953)
An indir in the runtime lookup sequence wasn't marked as nonfaulting
so dead context trees could not be entirely cleaned up.
Also added invariant since this particular lookup sequence will always
return the same result.
| -rw-r--r-- | src/jit/importer.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/jit/importer.cpp b/src/jit/importer.cpp index 08ac0d57a3..d06bd49975 100644 --- a/src/jit/importer.cpp +++ b/src/jit/importer.cpp @@ -2028,9 +2028,11 @@ GenTreePtr Compiler::impRuntimeLookupToTree(CORINFO_RESOLVED_TOKEN* pResolvedTok slot = gtNewLclvNode(slotLclNum, TYP_I_IMPL); GenTree* add = gtNewOperNode(GT_ADD, TYP_I_IMPL, slot, gtNewIconNode(-1, TYP_I_IMPL)); GenTree* indir = gtNewOperNode(GT_IND, TYP_I_IMPL, add); + indir->gtFlags |= GTF_IND_NONFAULTING; + indir->gtFlags |= GTF_IND_INVARIANT; + slot = gtNewLclvNode(slotLclNum, TYP_I_IMPL); GenTree* asg = gtNewAssignNode(slot, indir); - GenTree* colon = new (this, GT_COLON) GenTreeColon(TYP_VOID, gtNewNothingNode(), asg); GenTree* qmark = gtNewQmarkNode(TYP_VOID, relop, colon); impAppendTree(qmark, (unsigned)CHECK_SPILL_NONE, impCurStmtOffs); |