llvm/test/Transforms/ArgumentPromotion/2008-07-02-array-indexing.ll

; RUN: opt < %s -argpromotion -S | FileCheck %s
; PR2498

; This test tries to convince argpromotion about promoting the load from %A + 2,
; because there is a load of %A in the entry block
define internal i32 @callee(i1 %C, i32* %A) {
; CHECK-LABEL: define internal i32 @callee(
; CHECK: i1 %C, i32* %A)
entry:
  ; Unconditonally load the element at %A
  %A.0 = load i32, i32* %A
  br i1 %C, label %T, label %F

T:
  ret i32 %A.0

F:
  ; Load the element at offset two from %A. This should not be promoted!
  %A.2 = getelementptr i32, i32* %A, i32 2
  %R = load i32, i32* %A.2
  ret i32 %R
}

define i32 @foo() {
; CHECK-LABEL: define i32 @foo
        %X = call i32 @callee(i1 false, i32* null)             ; <i32> [#uses=1]
; CHECK: call i32 @callee(i1 false, i32* null)
        ret i32 %X
}