1; RUN: opt < %s -passes=lcssa -S | FileCheck %s 2 3declare i1 @c1() 4 5declare i1 @c2() 6 7define i32 @foo() { 8; CHECK-LABEL: @foo 9entry: 10 br label %loop_begin 11loop_begin: ; preds = %loop_body.2, %entry 12 br i1 true, label %loop_body.1, label %loop_exit2 13loop_body.1: ; preds = %loop_begin 14 %X.1 = add i32 0, 1 ; <i32> [#uses=1] 15 %rel.1 = call i1 @c1( ) ; <i1> [#uses=1] 16 br i1 %rel.1, label %loop_exit, label %loop_body.2 17loop_body.2: ; preds = %loop_body.1 18 %rel.2 = call i1 @c2( ) ; <i1> [#uses=1] 19 br i1 %rel.2, label %loop_exit, label %loop_begin 20loop_exit: ; preds = %loop_body.2, %loop_body.1 21; CHECK: %X.1.lcssa = phi 22 ret i32 %X.1 23loop_exit2: ; preds = %loop_begin 24 ret i32 1 25; CHECK-NOT: %X.1.lcssa1 26} 27 28