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 @test00(i64 %a) { 5; CHECK-LABEL: 'test00' 6; CHECK-NEXT: Classifying expressions for: @test00 7; CHECK-NEXT: %add = shl i64 %a, 10 8; CHECK-NEXT: --> (1024 * %a) U: [0,-1023) S: [-9223372036854775808,9223372036854774785) 9; CHECK-NEXT: %shl = add i64 %add, 256 10; CHECK-NEXT: --> (256 + (1024 * %a))<nuw><nsw> U: [256,-767) S: [-9223372036854775552,9223372036854775041) 11; CHECK-NEXT: %ashr = ashr exact i64 %shl, 8 12; CHECK-NEXT: --> (1 + (sext i56 (4 * (trunc i64 %a to i56)) to i64))<nuw><nsw> U: [1,-2) S: [-36028797018963967,36028797018963966) 13; CHECK-NEXT: Determining loop execution counts for: @test00 14; 15 %add = shl i64 %a, 10 16 %shl = add i64 %add, 256 17 %ashr = ashr exact i64 %shl, 8 18 ret i64 %ashr 19} 20 21define i64 @test01(i64 %a) { 22; CHECK-LABEL: 'test01' 23; CHECK-NEXT: Classifying expressions for: @test01 24; CHECK-NEXT: %add = shl i64 %a, 6 25; CHECK-NEXT: --> (64 * %a) U: [0,-63) S: [-9223372036854775808,9223372036854775745) 26; CHECK-NEXT: %shl = add i64 %add, 256 27; CHECK-NEXT: --> (256 + (64 * %a)) U: [0,-63) S: [-9223372036854775808,9223372036854775745) 28; CHECK-NEXT: %ashr = ashr exact i64 %shl, 8 29; CHECK-NEXT: --> %ashr U: [-36028797018963968,36028797018963968) S: [-36028797018963968,36028797018963968) 30; CHECK-NEXT: Determining loop execution counts for: @test01 31; 32 %add = shl i64 %a, 6 33 %shl = add i64 %add, 256 34 %ashr = ashr exact i64 %shl, 8 35 ret i64 %ashr 36} 37 38define i64 @test02(i64 %a) { 39; CHECK-LABEL: 'test02' 40; CHECK-NEXT: Classifying expressions for: @test02 41; CHECK-NEXT: %add = shl i64 %a, 12 42; CHECK-NEXT: --> (4096 * %a) U: [0,-4095) S: [-9223372036854775808,9223372036854771713) 43; CHECK-NEXT: %shl = add i64 %add, 4096 44; CHECK-NEXT: --> (4096 + (4096 * %a)) U: [0,-4095) S: [-9223372036854775808,9223372036854771713) 45; CHECK-NEXT: %ashr = ashr exact i64 %shl, 8 46; CHECK-NEXT: --> (sext i56 (16 + (16 * (trunc i64 %a to i56))) to i64) U: [0,-15) S: [-36028797018963968,36028797018963953) 47; CHECK-NEXT: Determining loop execution counts for: @test02 48; 49 %add = shl i64 %a, 12 50 %shl = add i64 %add, 4096 51 %ashr = ashr exact i64 %shl, 8 52 ret i64 %ashr 53} 54