TheRock/compiler/amd-llvm/llvm/test/Transforms/InstCombine/apint-or.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
; RUN: opt < %s -passes=instcombine -S | FileCheck %s

; These tests are for Integer BitWidth <= 64 && BitWidth % 2 != 0.
;; A | ~A == -1
define i23 @test1(i23 %A) {
; CHECK-LABEL: define i23 @test1(
; CHECK-SAME: i23 [[A:%.*]]) {
; CHECK-NEXT:    ret i23 -1
;
  %NotA = xor i23 -1, %A
  %B = or i23 %A, %NotA
  ret i23 %B
}

;; If we have: ((V + N) & C1) | (V & C2)
;; .. and C2 = ~C1 and C2 is 0+1+ and (N & C2) == 0
;; replace with V+N.
define i39 @test2(i39 %V, i39 %M) {
; CHECK-LABEL: define i39 @test2(
; CHECK-SAME: i39 [[V:%.*]], i39 [[M:%.*]]) {
; CHECK-NEXT:    [[N:%.*]] = and i39 [[M]], -274877906944
; CHECK-NEXT:    [[A:%.*]] = add i39 [[V]], [[N]]
; CHECK-NEXT:    ret i39 [[A]]
;
  %C1 = xor i39 274877906943, -1 ;; C2 = 274877906943
  %N = and i39 %M, 274877906944
  %A = add i39 %V, %N
  %B = and i39 %A, %C1
  %D = and i39 %V, 274877906943
  %R = or i39 %B, %D
  ret i39 %R
}

; These tests are for Integer BitWidth > 64 && BitWidth <= 1024.
;; A | ~A == -1
define i1023 @test4(i1023 %A) {
; CHECK-LABEL: define i1023 @test4(
; CHECK-SAME: i1023 [[A:%.*]]) {
; CHECK-NEXT:    ret i1023 -1
;
  %NotA = xor i1023 -1, %A
  %B = or i1023 %A, %NotA
  ret i1023 %B
}

;; If we have: ((V + N) & C1) | (V & C2)
;; .. and C2 = ~C1 and C2 is 0+1+ and (N & C2) == 0
;; replace with V+N.
define i399 @test5(i399 %V, i399 %M) {
; CHECK-LABEL: define i399 @test5(
; CHECK-SAME: i399 [[V:%.*]], i399 [[M:%.*]]) {
; CHECK-NEXT:    [[N:%.*]] = and i399 [[M]], 18446742974197923840
; CHECK-NEXT:    [[A:%.*]] = add i399 [[V]], [[N]]
; CHECK-NEXT:    ret i399 [[A]]
;
  %C1 = xor i399 274877906943, -1 ;; C2 = 274877906943
  %N = and i399 %M, 18446742974197923840
  %A = add i399 %V, %N
  %B = and i399 %A, %C1
  %D = and i399 %V, 274877906943
  %R = or i399 %B, %D
  ret i399 %R
}