shifttest.ll 316 B

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  1. ; With shl->mul reassociation, we can see that this is (shl A, 9) * A
  2. ;
  3. ; RUN: opt < %s -reassociate -instcombine -S |\
  4. ; RUN: grep "shl .*, 9"
  5. define i32 @test(i32 %A, i32 %B) {
  6. %X = shl i32 %A, 5 ; <i32> [#uses=1]
  7. %Y = shl i32 %A, 4 ; <i32> [#uses=1]
  8. %Z = mul i32 %Y, %X ; <i32> [#uses=1]
  9. ret i32 %Z
  10. }