[DAGCombiner] Add target hook function to decide folding (mul (add x, c1), c2)

[llvm-project.git] / llvm / test / Transforms / Reassociate / 2002-05-15-AgressiveSubMove.ll

; RUN: opt < %s -reassociate -S | FileCheck %s

define i32 @test1(i32 %A) {
; CHECK-LABEL: test1
; CHECK: ret i32 0
  %X = add i32 %A, 1
  %Y = add i32 %A, 1
  %r = sub i32 %X, %Y
  ret i32 %r
}