1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -loop-unroll -codegenprepare -S -mtriple=x86_64-- -mattr=+xop | FileCheck %s 3 4define i32 @bitreverse_i32(i32 %a) { 5; CHECK-LABEL: @bitreverse_i32( 6; CHECK-NEXT: entry: 7; CHECK-NEXT: [[REV:%.*]] = call i32 @llvm.bitreverse.i32(i32 [[A:%.*]]) 8; CHECK-NEXT: ret i32 [[REV]] 9; 10entry: 11 br label %for.body 12 13for.cond.cleanup: ; preds = %for.body 14 ret i32 %or 15 16for.body: ; preds = %for.body, %entry 17 %i.08 = phi i32 [ 0, %entry ], [ %inc, %for.body ] 18 %b.07 = phi i32 [ 0, %entry ], [ %or, %for.body ] 19 %shr = lshr i32 %a, %i.08 20 %and = and i32 %shr, 1 21 %sub = sub nuw nsw i32 31, %i.08 22 %shl = shl i32 %and, %sub 23 %or = or i32 %shl, %b.07 24 %inc = add nuw nsw i32 %i.08, 1 25 %exitcond = icmp eq i32 %inc, 32 26 br i1 %exitcond, label %for.cond.cleanup, label %for.body, !llvm.loop !3 27} 28 29; PR40058 30define i64 @bitreverse_i64(i64 %0) { 31; CHECK-LABEL: @bitreverse_i64( 32; CHECK-NEXT: [[REV:%.*]] = call i64 @llvm.bitreverse.i64(i64 [[TMP0:%.*]]) 33; CHECK-NEXT: ret i64 [[REV]] 34; 35 %2 = lshr i64 %0, 1 36 %3 = and i64 %2, 6148914691236517205 37 %4 = shl i64 %0, 1 38 %5 = and i64 %4, -6148914691236517206 39 %6 = or i64 %3, %5 40 %7 = lshr i64 %6, 2 41 %8 = and i64 %7, 3689348814741910323 42 %9 = shl i64 %6, 2 43 %10 = and i64 %9, -3689348814741910324 44 %11 = or i64 %8, %10 45 %12 = lshr i64 %11, 4 46 %13 = and i64 %12, 1085102592571150095 47 %14 = shl i64 %11, 4 48 %15 = and i64 %14, -1085102592571150096 49 %16 = or i64 %13, %15 50 %17 = lshr i64 %16, 8 51 %18 = and i64 %17, 71777214294589695 52 %19 = shl i64 %16, 8 53 %20 = and i64 %19, -71777214294589696 54 %21 = or i64 %18, %20 55 %22 = lshr i64 %21, 16 56 %23 = and i64 %22, 281470681808895 57 %24 = shl i64 %21, 16 58 %25 = and i64 %24, -281470681808896 59 %26 = or i64 %23, %25 60 %27 = tail call i64 @llvm.fshl.i64(i64 %26, i64 %26, i64 32) 61 ret i64 %27 62} 63declare i64 @llvm.fshl.i64(i64, i64, i64) 64 65!llvm.module.flags = !{!0, !1} 66!llvm.ident = !{!2} 67 68!0 = !{i32 1, !"wchar_size", i32 4} 69!1 = !{i32 1, !"min_enum_size", i32 4} 70!2 = !{!"clang version 3.8.0"} 71!3 = distinct !{!3, !4} 72!4 = !{!"llvm.loop.unroll.full"} 73