[SCEV] Skip instrs with non-scevable types in visitAndClearUsers.

No SCEVs are formed for instructions with non-scevable types, so no
other SCEV expressions can depend on them. Skip those instructions and
their users when invalidating SCEV expressions.

Depends on D144847.

Reviewed By: mkazantsev

Differential Revision: https://reviews.llvm.org/D144848

diff --git a/llvm/lib/Analysis/ScalarEvolution.cpp b/llvm/lib/Analysis/ScalarEvolution.cpp
index 9429b2f..641bf7b 100644 (file)
--- a/llvm/lib/Analysis/ScalarEvolution.cpp
+++ b/llvm/lib/Analysis/ScalarEvolution.cpp
@@ -8385,6 +8385,8 @@ void ScalarEvolution::visitAndClearUsers(
     SmallVectorImpl<const SCEV *> &ToForget) {
   while (!Worklist.empty()) {
     Instruction *I = Worklist.pop_back_val();
+    if (!isSCEVable(I->getType()))
+      continue;
 
     ValueExprMapType::iterator It =
         ValueExprMap.find_as(static_cast<Value *>(I));