| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -loop-unroll -codegenprepare -S -mtriple=x86_64-- -mattr=+xop | FileCheck %s |
| |
| define i32 @bitreverse_i32(i32 %a) { |
| ; CHECK-LABEL: @bitreverse_i32( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[REV:%.*]] = call i32 @llvm.bitreverse.i32(i32 [[A:%.*]]) |
| ; CHECK-NEXT: ret i32 [[REV]] |
| ; |
| entry: |
| br label %for.body |
| |
| for.cond.cleanup: ; preds = %for.body |
| ret i32 %or |
| |
| for.body: ; preds = %for.body, %entry |
| %i.08 = phi i32 [ 0, %entry ], [ %inc, %for.body ] |
| %b.07 = phi i32 [ 0, %entry ], [ %or, %for.body ] |
| %shr = lshr i32 %a, %i.08 |
| %and = and i32 %shr, 1 |
| %sub = sub nuw nsw i32 31, %i.08 |
| %shl = shl i32 %and, %sub |
| %or = or i32 %shl, %b.07 |
| %inc = add nuw nsw i32 %i.08, 1 |
| %exitcond = icmp eq i32 %inc, 32 |
| br i1 %exitcond, label %for.cond.cleanup, label %for.body, !llvm.loop !3 |
| } |
| |
| ; PR40058 |
| define i64 @bitreverse_i64(i64 %0) { |
| ; CHECK-LABEL: @bitreverse_i64( |
| ; CHECK-NEXT: [[REV:%.*]] = call i64 @llvm.bitreverse.i64(i64 [[TMP0:%.*]]) |
| ; CHECK-NEXT: ret i64 [[REV]] |
| ; |
| %2 = lshr i64 %0, 1 |
| %3 = and i64 %2, 6148914691236517205 |
| %4 = shl i64 %0, 1 |
| %5 = and i64 %4, -6148914691236517206 |
| %6 = or i64 %3, %5 |
| %7 = lshr i64 %6, 2 |
| %8 = and i64 %7, 3689348814741910323 |
| %9 = shl i64 %6, 2 |
| %10 = and i64 %9, -3689348814741910324 |
| %11 = or i64 %8, %10 |
| %12 = lshr i64 %11, 4 |
| %13 = and i64 %12, 1085102592571150095 |
| %14 = shl i64 %11, 4 |
| %15 = and i64 %14, -1085102592571150096 |
| %16 = or i64 %13, %15 |
| %17 = lshr i64 %16, 8 |
| %18 = and i64 %17, 71777214294589695 |
| %19 = shl i64 %16, 8 |
| %20 = and i64 %19, -71777214294589696 |
| %21 = or i64 %18, %20 |
| %22 = lshr i64 %21, 16 |
| %23 = and i64 %22, 281470681808895 |
| %24 = shl i64 %21, 16 |
| %25 = and i64 %24, -281470681808896 |
| %26 = or i64 %23, %25 |
| %27 = tail call i64 @llvm.fshl.i64(i64 %26, i64 %26, i64 32) |
| ret i64 %27 |
| } |
| declare i64 @llvm.fshl.i64(i64, i64, i64) |
| |
| !llvm.module.flags = !{!0, !1} |
| !llvm.ident = !{!2} |
| |
| !0 = !{i32 1, !"wchar_size", i32 4} |
| !1 = !{i32 1, !"min_enum_size", i32 4} |
| !2 = !{!"clang version 3.8.0"} |
| !3 = distinct !{!3, !4} |
| !4 = !{!"llvm.loop.unroll.full"} |