[clang] [llvm] [IR] Require DataLayout for pointer cast elimination (PR #162279)

[Nikita Popov via llvm-commits]

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@@ -8,10 +8,12 @@ define void @and_constexpr(i32 %a) {
 ; CHECK-LABEL: @and_constexpr(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    call void @use.i32(i32 0)
-; CHECK-NEXT:    [[AND_2:%.*]] = and i32 20, [[A:%.*]]
+; CHECK-NEXT:    [[AND_2:%.*]] = and i32 ptrtoint (ptr inttoptr (i32 20 to ptr) to i32), [[A:%.*]]
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nikic wrote:

I wasn't sure what to do with this test. Previously the constant expression here just folded away, so it wasn't really testing constant expressions, as the test name indicates. So I decided to leave this as-is.

https://github.com/llvm/llvm-project/pull/162279