[llvm] [polly] [delinearize] Extract array dimensions from alloca and global declarations (PR #156342)

[Sebastian Pop via llvm-commits]

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@@ -495,16 +497,15 @@ for.end:                                          ; preds = %for.body
 
 
 ;;  for (long int i = 0; i <= 15; i++) {
-;;    A[3*i - 18][18 - i] = i;
+;;    A[3*i + 18][18 - i] = i;
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sebpop wrote:

Here's the C code this LLVM IR comes from. This is invalid C because the first subscript `A[3*0 - 18]` is out-of-bounds.

https://github.com/llvm/llvm-project/pull/156342