; RUN: opt < %s -analyze -scalar-evolution \ ; RUN: | grep {max backedge-taken count is 1\$} @mode_table = global [4 x i32] zeroinitializer ; <[4 x i32]*> [#uses=1] define i8 @f() { entry: tail call i32 @fegetround( ) ; <i32>:0 [#uses=1] br label %bb bb: ; preds = %bb4, %entry %mode.0 = phi i8 [ 0, %entry ], [ %indvar.next, %bb4 ] ; <i8> [#uses=4] zext i8 %mode.0 to i32 ; <i32>:1 [#uses=1] getelementptr [4 x i32]* @mode_table, i32 0, i32 %1 ; <i32*>:2 [#uses=1] load i32* %2, align 4 ; <i32>:3 [#uses=1] icmp eq i32 %3, %0 ; <i1>:4 [#uses=1] br i1 %4, label %bb1, label %bb2 bb1: ; preds = %bb ret i8 %mode.0 bb2: ; preds = %bb icmp eq i8 %mode.0, 1 ; <i1>:5 [#uses=1] br i1 %5, label %bb5, label %bb4 bb4: ; preds = %bb2 %indvar.next = add i8 %mode.0, 1 ; <i8> [#uses=1] br label %bb bb5: ; preds = %bb2 tail call void @raise_exception( ) noreturn unreachable } declare i32 @fegetround() declare void @raise_exception() noreturn