+; RUN: opt -analyze -scalar-evolution < %s | FileCheck %s
+
+define i32 @branch_true(i32 %x, i32 %y) {
+; CHECK-LABEL: Classifying expressions for: @branch_true
+ entry:
+ br i1 true, label %add, label %merge
+
+ add:
+ %sum = add i32 %x, %y
+ br label %merge
+
+ merge:
+ %v = phi i32 [ %sum, %add ], [ %x, %entry ]
+; CHECK: %v = phi i32 [ %sum, %add ], [ %x, %entry ]
+; CHECK-NEXT: --> (%x + %y) U: full-set S: full-set
+ ret i32 %v
+}
+
+define i32 @branch_false(i32 %x, i32 %y) {
+; CHECK-LABEL: Classifying expressions for: @branch_false
+ entry:
+ br i1 false, label %add, label %merge
+
+ add:
+ %sum = add i32 %x, %y
+ br label %merge
+
+ merge:
+ %v = phi i32 [ %sum, %add ], [ %x, %entry ]
+; CHECK: %v = phi i32 [ %sum, %add ], [ %x, %entry ]
+; CHECK-NEXT: --> %x U: full-set S: full-set
+ ret i32 %v
+}
+
+define i32 @select_true(i32 %x, i32 %y) {
+; CHECK-LABEL: Classifying expressions for: @select_true
+ entry:
+ %v = select i1 true, i32 %x, i32 %y
+; CHECK: %v = select i1 true, i32 %x, i32 %y
+; CHECK-NEXT: --> %x U: full-set S: full-set
+ ret i32 %v
+}
+
+define i32 @select_false(i32 %x, i32 %y) {
+; CHECK-LABEL: Classifying expressions for: @select_false
+ entry:
+ %v = select i1 false, i32 %x, i32 %y
+; CHECK: %v = select i1 false, i32 %x, i32 %y
+; CHECK-NEXT: --> %y U: full-set S: full-set
+ ret i32 %v
+}