Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/llvm/test/Transforms/GlobalOpt/2004-10-10-CastStoreOnce.ll

@@ -0,0 +1,17 @@
+; RUN: opt < %s -globalopt
+
+@V = global float 1.200000e+01          ; <float*> [#uses=1]
+@G = internal global i32* null          ; <i32**> [#uses=2]
+
+define i32 @user() {
+        %P = load i32*, i32** @G              ; <i32*> [#uses=1]
+        %Q = load i32, i32* %P               ; <i32> [#uses=1]
+        ret i32 %Q
+}
+
+define void @setter() {
+        %Vi = bitcast float* @V to i32*         ; <i32*> [#uses=1]
+        store i32* %Vi, i32** @G
+        ret void
+}
+