Imported Upstream version 5.18.0.246

Former-commit-id: 0c7ce5b1a7851e13f22acfd379b7f9fb304e4833

external/llvm/test/Transforms/GlobalOpt/storepointer-compare.ll

@@ -0,0 +1,29 @@
+; RUN: opt < %s -globalopt -S | FileCheck %s
+; CHECK: call void @Actual
+
+; Check that a comparison does not prevent an indirect call from being made 
+; direct.  The global will still remain, but indirect call elim is still good.
+
+@G = internal global void ()* null              ; <void ()**> [#uses=2]
+
+define internal void @Actual() {
+        ret void
+}
+
+define void @init() {
+        store void ()* @Actual, void ()** @G
+        ret void
+}
+
+define void @doit() {
+        %FP = load void ()*, void ()** @G         ; <void ()*> [#uses=2]
+        %CC = icmp eq void ()* %FP, null                ; <i1> [#uses=1]
+        br i1 %CC, label %isNull, label %DoCall
+
+DoCall:         ; preds = %0
+        call void %FP( )
+        ret void
+
+isNull:         ; preds = %0
+        ret void
+}