and-or-not.ll 1.8 KB

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  1. ; RUN: opt < %s -instcombine -S | grep xor | count 4
  2. ; RUN: opt < %s -instcombine -S | not grep and
  3. ; RUN: opt < %s -instcombine -S | not grep " or"
  4. ; PR1510
  5. ; These are all equivalent to A^B
  6. define i32 @test1(i32 %a, i32 %b) {
  7. entry:
  8. %tmp3 = or i32 %b, %a ; <i32> [#uses=1]
  9. %tmp3not = xor i32 %tmp3, -1 ; <i32> [#uses=1]
  10. %tmp6 = and i32 %b, %a ; <i32> [#uses=1]
  11. %tmp7 = or i32 %tmp6, %tmp3not ; <i32> [#uses=1]
  12. %tmp7not = xor i32 %tmp7, -1 ; <i32> [#uses=1]
  13. ret i32 %tmp7not
  14. }
  15. define i32 @test2(i32 %a, i32 %b) {
  16. entry:
  17. %tmp3 = or i32 %b, %a ; <i32> [#uses=1]
  18. %tmp6 = and i32 %b, %a ; <i32> [#uses=1]
  19. %tmp6not = xor i32 %tmp6, -1 ; <i32> [#uses=1]
  20. %tmp7 = and i32 %tmp3, %tmp6not ; <i32> [#uses=1]
  21. ret i32 %tmp7
  22. }
  23. define <4 x i32> @test3(<4 x i32> %a, <4 x i32> %b) {
  24. entry:
  25. %tmp3 = or <4 x i32> %a, %b ; <<4 x i32>> [#uses=1]
  26. %tmp3not = xor <4 x i32> %tmp3, < i32 -1, i32 -1, i32 -1, i32 -1 > ; <<4 x i32>> [#uses=1]
  27. %tmp6 = and <4 x i32> %a, %b ; <<4 x i32>> [#uses=1]
  28. %tmp7 = or <4 x i32> %tmp6, %tmp3not ; <<4 x i32>> [#uses=1]
  29. %tmp7not = xor <4 x i32> %tmp7, < i32 -1, i32 -1, i32 -1, i32 -1 > ; <<4 x i32>> [#uses=1]
  30. ret <4 x i32> %tmp7not
  31. }
  32. define <4 x i32> @test4(<4 x i32> %a, <4 x i32> %b) {
  33. entry:
  34. %tmp3 = or <4 x i32> %a, %b ; <<4 x i32>> [#uses=1]
  35. %tmp6 = and <4 x i32> %a, %b ; <<4 x i32>> [#uses=1]
  36. %tmp6not = xor <4 x i32> %tmp6, < i32 -1, i32 -1, i32 -1, i32 -1 > ; <<4 x i32>> [#uses=1]
  37. %tmp7 = and <4 x i32> %tmp3, %tmp6not ; <<4 x i32>> [#uses=1]
  38. ret <4 x i32> %tmp7
  39. }