2006-06-12-MultipleExitsSameBlock.ll 716 B

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