search for: move_one_alt

...denceAnalysisWrapperPass to compute the dependencies between all instructions of a loop. I have the following two examples of code I wish to analyse: example A: ``` void move_one(int *A, unsigned n) { for (unsigned i = 0; i < n-1; ++i) { A[i] = A[i + 1]; } } ``` and example B: ``` void move_one_alt(int *A, unsigned n) { int *B = A + 1; for (unsigned i = 0; i < n-1; ++i) { A[i] = B[i]; } } ``` I would expect that I get the same result for both A and B, namely a loop carried anti (WAR) dependence from the generated load instruction to the generated store instruction. This should b...

...xamples of code I wish to analyse: >> >> example A: >> >> ``` >> void move_one(int *A, unsigned n) { >> for (unsigned i = 0; i < n-1; ++i) { >> A[i] = A[i + 1]; >> } >> } >> ``` >> and example B: >> ``` >> void move_one_alt(int *A, unsigned n) { >> int *B = A + 1; >> for (unsigned i = 0; i < n-1; ++i) { >> A[i] = B[i]; >> } >> } >> ``` >> >> I would expect that I get the same result for both A and B, namely a loop >> carried anti (WAR) dependence from...

...* *; <label>:13: ; preds = %6* * %14 = add i32 %.0, 1* * br label %3* *; <label>:15: ; preds = %3* * ret void* *}* Here's the .ll code for example B: *; Function Attrs: nounwind uwtable* *define void @_Z12move_one_altPij(i32*, i32) #3 {* * %3 = getelementptr inbounds i32, i32* %0, i64 1* * br label %4* *; <label>:4: ; preds = %13, %2* * %.0 = phi i32 [ 0, %2 ], [ %14, %13 ]* * %5 = sub i32 %1, 1* * %6 = icmp ult i32 %.0, %5* * br i1 %6, label %7, label %15* *; &...