File: DifferentAccessSize.ll

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llvm-toolchain-21 1%3A21.1.6-3
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; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 5
; RUN: opt < %s -disable-output "-passes=print<da>" -aa-pipeline=basic-aa 2>&1 \
; RUN: | FileCheck %s

; The dependence test does not handle array accesses of different sizes: i32 and i64.
; Bug 16183 - https://github.com/llvm/llvm-project/issues/16183

define i64 @bug16183_alias(ptr nocapture %A) {
; CHECK-LABEL: 'bug16183_alias'
; CHECK-NEXT:  Src: store i32 2, ptr %arrayidx, align 4 --> Dst: store i32 2, ptr %arrayidx, align 4
; CHECK-NEXT:    da analyze - none!
; CHECK-NEXT:  Src: store i32 2, ptr %arrayidx, align 4 --> Dst: %0 = load i64, ptr %A, align 8
; CHECK-NEXT:    da analyze - confused!
; CHECK-NEXT:  Src: %0 = load i64, ptr %A, align 8 --> Dst: %0 = load i64, ptr %A, align 8
; CHECK-NEXT:    da analyze - none!
;
entry:
  %arrayidx = getelementptr inbounds i32, ptr %A, i64 1
  store i32 2, ptr %arrayidx, align 4
  %0 = load i64, ptr %A, align 8
  ret i64 %0
}