1; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 2 2; RUN: opt < %s -disable-output "-passes=print<scalar-evolution>" 2>&1 | FileCheck %s 3 4define i64 @test64(i64 %a) { 5; CHECK-LABEL: 'test64' 6; CHECK-NEXT: Classifying expressions for: @test64 7; CHECK-NEXT: %add = shl i64 %a, 8 8; CHECK-NEXT: --> (256 * %a) U: [0,-255) S: [-9223372036854775808,9223372036854775553) 9; CHECK-NEXT: %shl = add i64 %add, 256 10; CHECK-NEXT: --> (256 + (256 * %a)) U: [0,-255) S: [-9223372036854775808,9223372036854775553) 11; CHECK-NEXT: %ashr = ashr exact i64 %shl, 8 12; CHECK-NEXT: --> (sext i56 (1 + (trunc i64 %a to i56)) to i64) U: [-36028797018963968,36028797018963968) S: [-36028797018963968,36028797018963968) 13; CHECK-NEXT: Determining loop execution counts for: @test64 14; 15 %add = shl i64 %a, 8 16 %shl = add i64 %add, 256 17 %ashr = ashr exact i64 %shl, 8 18 ret i64 %ashr 19} 20 21define i128 @test128(i128 %a) { 22; CHECK-LABEL: 'test128' 23; CHECK-NEXT: Classifying expressions for: @test128 24; CHECK-NEXT: %shl = shl i128 %a, 4 25; CHECK-NEXT: --> (16 * %a) U: [0,-15) S: [-170141183460469231731687303715884105728,170141183460469231731687303715884105713) 26; CHECK-NEXT: %add = add i128 %shl, -55 27; CHECK-NEXT: --> (-55 + (16 * %a)) U: [-55,-70) S: [170141183460469231731687303715884105673,170141183460469231731687303715884105658) 28; CHECK-NEXT: %ashr = ashr i128 %add, 4 29; CHECK-NEXT: --> (sext i124 (-4 + (trunc i128 %a to i124)) to i128) U: [-10633823966279326983230456482242756608,10633823966279326983230456482242756608) S: [-10633823966279326983230456482242756608,10633823966279326983230456482242756608) 30; CHECK-NEXT: Determining loop execution counts for: @test128 31; 32 %shl = shl i128 %a, 4 33 %add = add i128 %shl, -55 34 %ashr = ashr i128 %add, 4 35 ret i128 %ashr 36} 37