llvm/llvm/test/Analysis/ScalarEvolution/urem-0.ll

; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
; RUN: opt < %s "-passes=print<scalar-evolution>" -disable-output 2>&1 | FileCheck %s

define i8 @foo(i8 %a) {
; CHECK-LABEL: 'foo'
; CHECK-NEXT:  Classifying expressions for: @foo
; CHECK-NEXT:    %t0 = urem i8 %a, 27
; CHECK-NEXT:    --> ((-27 * (%a /u 27)) + %a) U: full-set S: full-set
; CHECK-NEXT:  Determining loop execution counts for: @foo
;
  %t0 = urem i8 %a, 27
  ret i8 %t0
}

define i8 @bar(i8 %a) {
; CHECK-LABEL: 'bar'
; CHECK-NEXT:  Classifying expressions for: @bar
; CHECK-NEXT:    %t1 = urem i8 %a, 1
; CHECK-NEXT:    --> 0 U: [0,1) S: [0,1)
; CHECK-NEXT:  Determining loop execution counts for: @bar
;
  %t1 = urem i8 %a, 1
  ret i8 %t1
}

define i8 @baz(i8 %a) {
; CHECK-LABEL: 'baz'
; CHECK-NEXT:  Classifying expressions for: @baz
; CHECK-NEXT:    %t2 = urem i8 %a, 32
; CHECK-NEXT:    --> (zext i5 (trunc i8 %a to i5) to i8) U: [0,32) S: [0,32)
; CHECK-NEXT:  Determining loop execution counts for: @baz
;
  %t2 = urem i8 %a, 32
  ret i8 %t2
}

define i8 @qux(i8 %a) {
; CHECK-LABEL: 'qux'
; CHECK-NEXT:  Classifying expressions for: @qux
; CHECK-NEXT:    %t3 = urem i8 %a, 2
; CHECK-NEXT:    --> (zext i1 (trunc i8 %a to i1) to i8) U: [0,2) S: [0,2)
; CHECK-NEXT:  Determining loop execution counts for: @qux
;
  %t3 = urem i8 %a, 2
  ret i8 %t3
}

define i32 @test_and_not(i32 %arg) {
; CHECK-LABEL: 'test_and_not'
; CHECK-NEXT:  Classifying expressions for: @test_and_not
; CHECK-NEXT:    %andn = and i32 %arg, -8
; CHECK-NEXT:    --> (8 * (%arg /u 8))<nuw> U: [0,-7) S: [-2147483648,2147483641)
; CHECK-NEXT:  Determining loop execution counts for: @test_and_not
;
  %andn = and i32 %arg, -8
  ret i32 %andn
}

define i32 @test_sub_urem(i32 %arg) {
; CHECK-LABEL: 'test_sub_urem'
; CHECK-NEXT:  Classifying expressions for: @test_sub_urem
; CHECK-NEXT:    %urem = urem i32 %arg, 8
; CHECK-NEXT:    --> (zext i3 (trunc i32 %arg to i3) to i32) U: [0,8) S: [0,8)
; CHECK-NEXT:    %sub = sub i32 %arg, %urem
; CHECK-NEXT:    --> (8 * (%arg /u 8))<nuw> U: [0,-7) S: [-2147483648,2147483641)
; CHECK-NEXT:  Determining loop execution counts for: @test_sub_urem
;
  %urem = urem i32 %arg, 8
  %sub = sub i32 %arg, %urem
  ret i32 %sub
}

define i32 @test_trunc_zext(i32 %arg) {
; CHECK-LABEL: 'test_trunc_zext'
; CHECK-NEXT:  Classifying expressions for: @test_trunc_zext
; CHECK-NEXT:    %trunc = trunc i32 %arg to i3
; CHECK-NEXT:    --> (trunc i32 %arg to i3) U: full-set S: full-set
; CHECK-NEXT:    %zext = zext i3 %trunc to i32
; CHECK-NEXT:    --> (zext i3 (trunc i32 %arg to i3) to i32) U: [0,8) S: [0,8)
; CHECK-NEXT:    %sub = sub i32 %arg, %zext
; CHECK-NEXT:    --> (8 * (%arg /u 8))<nuw> U: [0,-7) S: [-2147483648,2147483641)
; CHECK-NEXT:  Determining loop execution counts for: @test_trunc_zext
;
  %trunc = trunc i32 %arg to i3
  %zext = zext i3 %trunc to i32
  %sub = sub i32 %arg, %zext
  ret i32 %sub
}