| ; RUN: opt -passes=loop-versioning -S < %s | FileCheck %s |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| define void @fill(ptr %ls1.20, ptr %ls2.21, ptr %cse3.22) { |
| ; CHECK-LABEL: @fill( |
| ; CHECK-NEXT: bb1.lver.check: |
| ; CHECK-NEXT: [[LS1_20_PROMOTED:%.*]] = load ptr, ptr [[LS1_20:%.*]], align 8 |
| ; CHECK-NEXT: [[LS2_21_PROMOTED:%.*]] = load ptr, ptr [[LS2_21:%.*]], align 8 |
| ; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, ptr [[LS1_20_PROMOTED]], i64 -1 |
| ; CHECK-NEXT: [[SCEVGEP1:%.*]] = getelementptr i8, ptr [[LS1_20_PROMOTED]], i64 1 |
| ; CHECK-NEXT: [[SCEVGEP2:%.*]] = getelementptr i8, ptr [[LS2_21_PROMOTED]], i64 1 |
| ; CHECK-NEXT: [[BOUND0:%.*]] = icmp ult ptr [[SCEVGEP]], [[SCEVGEP2]] |
| ; CHECK-NEXT: [[BOUND1:%.*]] = icmp ult ptr [[LS2_21_PROMOTED]], [[SCEVGEP1]] |
| ; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]] |
| ; CHECK-NEXT: br i1 [[FOUND_CONFLICT]], label %bb1.ph.lver.orig, label %bb1.ph |
| ; CHECK: bb1.ph.lver.orig: |
| ; |
| bb1.ph: |
| %ls1.20.promoted = load ptr, ptr %ls1.20 |
| %ls2.21.promoted = load ptr, ptr %ls2.21 |
| br label %bb1 |
| |
| bb1: |
| %_tmp302 = phi ptr [ %ls2.21.promoted, %bb1.ph ], [ %_tmp30, %bb1 ] |
| %_tmp281 = phi ptr [ %ls1.20.promoted, %bb1.ph ], [ %_tmp28, %bb1 ] |
| %_tmp14 = getelementptr i8, ptr %_tmp281, i16 -1 |
| %_tmp15 = load i8, ptr %_tmp14 |
| %add = add i8 %_tmp15, 1 |
| store i8 %add, ptr %_tmp281 |
| store i8 %add, ptr %_tmp302 |
| %_tmp28 = getelementptr i8, ptr %_tmp281, i16 1 |
| %_tmp30 = getelementptr i8, ptr %_tmp302, i16 1 |
| br i1 false, label %bb1, label %bb3.loopexit |
| |
| bb3.loopexit: |
| %_tmp30.lcssa = phi ptr [ %_tmp30, %bb1 ] |
| %_tmp15.lcssa = phi i8 [ %_tmp15, %bb1 ] |
| %_tmp28.lcssa = phi ptr [ %_tmp28, %bb1 ] |
| store ptr %_tmp28.lcssa, ptr %ls1.20 |
| store i8 %_tmp15.lcssa, ptr %cse3.22 |
| store ptr %_tmp30.lcssa, ptr %ls2.21 |
| br label %bb3 |
| |
| bb3: |
| ret void |
| } |
| |
| define void @fill_no_null_opt(ptr %ls1.20, ptr %ls2.21, ptr %cse3.22) #0 { |
| ; CHECK-LABEL: @fill_no_null_opt( |
| ; CHECK-NEXT: bb1.lver.check: |
| ; CHECK-NEXT: [[LS1_20_PROMOTED:%.*]] = load ptr, ptr [[LS1_20:%.*]], align 8 |
| ; CHECK-NEXT: [[LS2_21_PROMOTED:%.*]] = load ptr, ptr [[LS2_21:%.*]], align 8 |
| ; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, ptr [[LS1_20_PROMOTED]], i64 -1 |
| ; CHECK-NEXT: [[SCEVGEP1:%.*]] = getelementptr i8, ptr [[LS1_20_PROMOTED]], i64 1 |
| ; CHECK-NEXT: [[SCEVGEP2:%.*]] = getelementptr i8, ptr [[LS2_21_PROMOTED]], i64 1 |
| ; CHECK-NEXT: [[BOUND0:%.*]] = icmp ult ptr [[SCEVGEP]], [[SCEVGEP2]] |
| ; CHECK-NEXT: [[BOUND1:%.*]] = icmp ult ptr [[LS2_21_PROMOTED]], [[SCEVGEP1]] |
| ; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]] |
| ; CHECK-NEXT: br i1 [[FOUND_CONFLICT]], label %bb1.ph.lver.orig, label %bb1.ph |
| ; CHECK: bb1.ph.lver.orig: |
| ; |
| bb1.ph: |
| %ls1.20.promoted = load ptr, ptr %ls1.20 |
| %ls2.21.promoted = load ptr, ptr %ls2.21 |
| br label %bb1 |
| |
| bb1: |
| %_tmp302 = phi ptr [ %ls2.21.promoted, %bb1.ph ], [ %_tmp30, %bb1 ] |
| %_tmp281 = phi ptr [ %ls1.20.promoted, %bb1.ph ], [ %_tmp28, %bb1 ] |
| %_tmp14 = getelementptr i8, ptr %_tmp281, i16 -1 |
| %_tmp15 = load i8, ptr %_tmp14 |
| %add = add i8 %_tmp15, 1 |
| store i8 %add, ptr %_tmp281 |
| store i8 %add, ptr %_tmp302 |
| %_tmp28 = getelementptr i8, ptr %_tmp281, i16 1 |
| %_tmp30 = getelementptr i8, ptr %_tmp302, i16 1 |
| br i1 false, label %bb1, label %bb3.loopexit |
| |
| bb3.loopexit: |
| %_tmp30.lcssa = phi ptr [ %_tmp30, %bb1 ] |
| %_tmp15.lcssa = phi i8 [ %_tmp15, %bb1 ] |
| %_tmp28.lcssa = phi ptr [ %_tmp28, %bb1 ] |
| store ptr %_tmp28.lcssa, ptr %ls1.20 |
| store i8 %_tmp15.lcssa, ptr %cse3.22 |
| store ptr %_tmp30.lcssa, ptr %ls2.21 |
| br label %bb3 |
| |
| bb3: |
| ret void |
| } |
| |
| attributes #0 = { null_pointer_is_valid } |