2009-01-08-NoInlineDynamicAlloca.ll 1.0 KB

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  1. ; RUN: opt < %s -inline -S | grep call
  2. ; Do not inline calls to variable-sized alloca.
  3. @q = common global i8* null ; <i8**> [#uses=1]
  4. define i8* @a(i32 %i) nounwind {
  5. entry:
  6. %i_addr = alloca i32 ; <i32*> [#uses=2]
  7. %retval = alloca i8* ; <i8**> [#uses=1]
  8. %p = alloca i8* ; <i8**> [#uses=2]
  9. %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
  10. store i32 %i, i32* %i_addr
  11. %0 = load i32, i32* %i_addr, align 4 ; <i32> [#uses=1]
  12. %1 = alloca i8, i32 %0 ; <i8*> [#uses=1]
  13. store i8* %1, i8** %p, align 4
  14. %2 = load i8*, i8** %p, align 4 ; <i8*> [#uses=1]
  15. store i8* %2, i8** @q, align 4
  16. br label %return
  17. return: ; preds = %entry
  18. %retval1 = load i8*, i8** %retval ; <i8*> [#uses=1]
  19. ret i8* %retval1
  20. }
  21. define void @b(i32 %i) nounwind {
  22. entry:
  23. %i_addr = alloca i32 ; <i32*> [#uses=2]
  24. %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
  25. store i32 %i, i32* %i_addr
  26. %0 = load i32, i32* %i_addr, align 4 ; <i32> [#uses=1]
  27. %1 = call i8* @a(i32 %0) nounwind ; <i8*> [#uses=0]
  28. br label %return
  29. return: ; preds = %entry
  30. ret void
  31. }