[llvm] [indvars] Missing variables at Og: (PR #69920)

[Nikita Popov via llvm-commits]

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@@ -1931,6 +1932,30 @@ bool IndVarSimplify::run(Loop *L) {
     }
   }
 
+  // The loop exit values have been updated; insert the debug location
+  // for the induction variable with its final value.
+  if (PHINode *IndVar = L->getInductionVariable(*SE)) {
+    const SCEV *IndVarSCEV = SE->getSCEVAtScope(IndVar, L->getParentLoop());
+    if (IndVarSCEV->getSCEVType() == SCEVTypes::scConstant) {
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nikic wrote:

`isa<SCEVConstant>`.

https://github.com/llvm/llvm-project/pull/69920