| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -passes=loop-idiom < %s -S | FileCheck %s |
| |
| %struct.S = type { i32, i32, i8 } |
| |
| ; unsigned copy_noalias(S* __restrict a, S *b, int n) { |
| ; for (int i = 0; i < n; i++) { |
| ; a[i] = b[i]; |
| ; } |
| ; return sizeof(a[0]); |
| ; } |
| |
| ; Function Attrs: nofree nounwind uwtable mustprogress |
| define dso_local i32 @copy_noalias(ptr noalias nocapture %a, ptr nocapture readonly %b, i32 %n) local_unnamed_addr { |
| ; CHECK-LABEL: @copy_noalias( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP7:%.*]] = icmp sgt i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[CMP7]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_COND_CLEANUP:%.*]] |
| ; CHECK: for.body.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[N]] to i64 |
| ; CHECK-NEXT: [[TMP1:%.*]] = mul nuw nsw i64 [[TMP0]], 12 |
| ; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 4 [[A:%.*]], ptr align 4 [[B:%.*]], i64 [[TMP1]], i1 false) |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.cond.cleanup.loopexit: |
| ; CHECK-NEXT: br label [[FOR_COND_CLEANUP]] |
| ; CHECK: for.cond.cleanup: |
| ; CHECK-NEXT: ret i32 12 |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[I_08:%.*]] = phi i32 [ [[INC:%.*]], [[FOR_BODY]] ], [ 0, [[FOR_BODY_PREHEADER]] ] |
| ; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[I_08]] to i64 |
| ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [[STRUCT_S:%.*]], ptr [[B]], i64 [[IDXPROM]] |
| ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds [[STRUCT_S]], ptr [[A]], i64 [[IDXPROM]] |
| ; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[I_08]], 1 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[INC]], [[N]] |
| ; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_COND_CLEANUP_LOOPEXIT:%.*]] |
| ; |
| entry: |
| %cmp7 = icmp sgt i32 %n, 0 |
| br i1 %cmp7, label %for.body.preheader, label %for.cond.cleanup |
| |
| for.body.preheader: ; preds = %entry |
| br label %for.body |
| |
| for.cond.cleanup.loopexit: ; preds = %for.body |
| br label %for.cond.cleanup |
| |
| for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry |
| ret i32 12 |
| |
| for.body: ; preds = %for.body, %for.body.preheader |
| %i.08 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ] |
| %idxprom = zext i32 %i.08 to i64 |
| %arrayidx = getelementptr inbounds %struct.S, ptr %b, i64 %idxprom |
| %arrayidx2 = getelementptr inbounds %struct.S, ptr %a, i64 %idxprom |
| call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 4 dereferenceable(12) %arrayidx2, ptr nonnull align 4 dereferenceable(12) %arrayidx, i64 12, i1 false) |
| %inc = add nuw nsw i32 %i.08, 1 |
| %cmp = icmp slt i32 %inc, %n |
| br i1 %cmp, label %for.body, label %for.cond.cleanup.loopexit |
| } |
| |
| ; unsigned copy_may_alias(S *a, S *b, int n) { |
| ; for (int i = 0; i < n; i++) { |
| ; a[i] = b[i]; |
| ; } |
| ; return sizeof(a[0]); |
| ; } |
| |
| ; Function Attrs: nofree nounwind uwtable mustprogress |
| define dso_local i32 @copy_may_alias(ptr nocapture %a, ptr nocapture readonly %b, i32 %n) local_unnamed_addr { |
| ; CHECK-LABEL: @copy_may_alias( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP7:%.*]] = icmp sgt i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[CMP7]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_COND_CLEANUP:%.*]] |
| ; CHECK: for.body.preheader: |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.cond.cleanup.loopexit: |
| ; CHECK-NEXT: br label [[FOR_COND_CLEANUP]] |
| ; CHECK: for.cond.cleanup: |
| ; CHECK-NEXT: ret i32 12 |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[I_08:%.*]] = phi i32 [ [[INC:%.*]], [[FOR_BODY]] ], [ 0, [[FOR_BODY_PREHEADER]] ] |
| ; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[I_08]] to i64 |
| ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [[STRUCT_S:%.*]], ptr [[B:%.*]], i64 [[IDXPROM]] |
| ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds [[STRUCT_S]], ptr [[A:%.*]], i64 [[IDXPROM]] |
| ; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 4 dereferenceable(12) [[ARRAYIDX2]], ptr nonnull align 4 dereferenceable(12) [[ARRAYIDX]], i64 12, i1 false) |
| ; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[I_08]], 1 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[INC]], [[N]] |
| ; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_COND_CLEANUP_LOOPEXIT:%.*]] |
| ; |
| entry: |
| %cmp7 = icmp sgt i32 %n, 0 |
| br i1 %cmp7, label %for.body.preheader, label %for.cond.cleanup |
| |
| for.body.preheader: ; preds = %entry |
| br label %for.body |
| |
| for.cond.cleanup.loopexit: ; preds = %for.body |
| br label %for.cond.cleanup |
| |
| for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry |
| ret i32 12 |
| |
| for.body: ; preds = %for.body, %for.body.preheader |
| %i.08 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ] |
| %idxprom = zext i32 %i.08 to i64 |
| %arrayidx = getelementptr inbounds %struct.S, ptr %b, i64 %idxprom |
| %arrayidx2 = getelementptr inbounds %struct.S, ptr %a, i64 %idxprom |
| call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 4 dereferenceable(12) %arrayidx2, ptr nonnull align 4 dereferenceable(12) %arrayidx, i64 12, i1 false) |
| %inc = add nuw nsw i32 %i.08, 1 |
| %cmp = icmp slt i32 %inc, %n |
| br i1 %cmp, label %for.body, label %for.cond.cleanup.loopexit |
| } |
| |
| %struct.R = type <{ i8, i32, i8 }> |
| |
| ; void copy_noalias_read(S* __restrict x, S* __restrict y, int n, int &s) { |
| ; for (int i = 0; i < n; i++) { |
| ; x[i] = y[i]; |
| ; s += y[i].b; |
| ; } |
| ; } |
| |
| ; Function Attrs: nofree nounwind uwtable mustprogress |
| define dso_local void @copy_noalias_read(ptr noalias nocapture %x, ptr noalias nocapture readonly %y, i32 %n, ptr nocapture nonnull align 4 dereferenceable(4) %s) local_unnamed_addr { |
| ; CHECK-LABEL: @copy_noalias_read( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP11:%.*]] = icmp sgt i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[CMP11]], label [[FOR_BODY_LR_PH:%.*]], label [[FOR_COND_CLEANUP:%.*]] |
| ; CHECK: for.body.lr.ph: |
| ; CHECK-NEXT: [[S_PROMOTED:%.*]] = load i32, ptr [[S:%.*]], align 4 |
| ; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[N]] to i64 |
| ; CHECK-NEXT: [[TMP1:%.*]] = mul nuw nsw i64 [[TMP0]], 6 |
| ; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 1 [[X:%.*]], ptr align 1 [[Y:%.*]], i64 [[TMP1]], i1 false) |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.cond.for.cond.cleanup_crit_edge: |
| ; CHECK-NEXT: [[ADD_LCSSA:%.*]] = phi i32 [ [[ADD:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: store i32 [[ADD_LCSSA]], ptr [[S]], align 4 |
| ; CHECK-NEXT: br label [[FOR_COND_CLEANUP]] |
| ; CHECK: for.cond.cleanup: |
| ; CHECK-NEXT: ret void |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[ADD13:%.*]] = phi i32 [ [[S_PROMOTED]], [[FOR_BODY_LR_PH]] ], [ [[ADD]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[I_012:%.*]] = phi i32 [ 0, [[FOR_BODY_LR_PH]] ], [ [[INC:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[I_012]] to i64 |
| ; CHECK-NEXT: [[I:%.*]] = getelementptr inbounds [[STRUCT_R:%.*]], ptr [[X]], i64 [[IDXPROM]], i32 0 |
| ; CHECK-NEXT: [[I1:%.*]] = getelementptr inbounds [[STRUCT_R]], ptr [[Y]], i64 [[IDXPROM]], i32 0 |
| ; CHECK-NEXT: [[B:%.*]] = getelementptr inbounds [[STRUCT_R]], ptr [[Y]], i64 [[IDXPROM]], i32 1 |
| ; CHECK-NEXT: [[I2:%.*]] = load i32, ptr [[B]], align 1 |
| ; CHECK-NEXT: [[ADD]] = add nsw i32 [[ADD13]], [[I2]] |
| ; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[I_012]], 1 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[INC]], [[N]] |
| ; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_COND_FOR_COND_CLEANUP_CRIT_EDGE:%.*]] |
| ; |
| entry: |
| %cmp11 = icmp sgt i32 %n, 0 |
| br i1 %cmp11, label %for.body.lr.ph, label %for.cond.cleanup |
| |
| for.body.lr.ph: ; preds = %entry |
| %s.promoted = load i32, ptr %s, align 4 |
| br label %for.body |
| |
| for.cond.for.cond.cleanup_crit_edge: ; preds = %for.body |
| %add.lcssa = phi i32 [ %add, %for.body ] |
| store i32 %add.lcssa, ptr %s, align 4 |
| br label %for.cond.cleanup |
| |
| for.cond.cleanup: ; preds = %for.cond.for.cond.cleanup_crit_edge, %entry |
| ret void |
| |
| for.body: ; preds = %for.body, %for.body.lr.ph |
| %add13 = phi i32 [ %s.promoted, %for.body.lr.ph ], [ %add, %for.body ] |
| %i.012 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.body ] |
| %idxprom = zext i32 %i.012 to i64 |
| %i = getelementptr inbounds %struct.R, ptr %x, i64 %idxprom, i32 0 |
| %i1 = getelementptr inbounds %struct.R, ptr %y, i64 %idxprom, i32 0 |
| call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 dereferenceable(6) %i, ptr nonnull align 1 dereferenceable(6) %i1, i64 6, i1 false) |
| %b = getelementptr inbounds %struct.R, ptr %y, i64 %idxprom, i32 1 |
| %i2 = load i32, ptr %b, align 1 |
| %add = add nsw i32 %add13, %i2 |
| %inc = add nuw nsw i32 %i.012, 1 |
| %cmp = icmp slt i32 %inc, %n |
| br i1 %cmp, label %for.body, label %for.cond.for.cond.cleanup_crit_edge |
| } |
| |
| ; unsigned copy_noalias_negative_stride(S* __restrict__ a, S* b, int n) { |
| ; for (int i = n; i >= 0; i--) { |
| ; a[i] = b[i]; |
| ; } |
| ; return sizeof(a[0]); |
| ; } |
| |
| ; Function Attrs: nofree nosync nounwind uwtable mustprogress |
| define dso_local i32 @copy_noalias_negative_stride(ptr noalias nocapture %arg, ptr nocapture readonly %arg1, i32 %arg2) local_unnamed_addr { |
| ; CHECK-LABEL: @copy_noalias_negative_stride( |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I:%.*]] = icmp sgt i32 [[ARG2:%.*]], -1 |
| ; CHECK-NEXT: br i1 [[I]], label [[BB3:%.*]], label [[BB5:%.*]] |
| ; CHECK: bb3: |
| ; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[ARG2]], 1 |
| ; CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64 |
| ; CHECK-NEXT: [[TMP2:%.*]] = mul nuw nsw i64 [[TMP1]], 12 |
| ; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 4 [[ARG:%.*]], ptr align 4 [[ARG1:%.*]], i64 [[TMP2]], i1 false) |
| ; CHECK-NEXT: br label [[BB6:%.*]] |
| ; CHECK: bb4: |
| ; CHECK-NEXT: br label [[BB5]] |
| ; CHECK: bb5: |
| ; CHECK-NEXT: ret i32 12 |
| ; CHECK: bb6: |
| ; CHECK-NEXT: [[I7:%.*]] = phi i32 [ [[I13:%.*]], [[BB6]] ], [ [[ARG2]], [[BB3]] ] |
| ; CHECK-NEXT: [[I8:%.*]] = zext i32 [[I7]] to i64 |
| ; CHECK-NEXT: [[I9:%.*]] = getelementptr inbounds [[STRUCT_S:%.*]], ptr [[ARG1]], i64 [[I8]] |
| ; CHECK-NEXT: [[I10:%.*]] = getelementptr inbounds [[STRUCT_S]], ptr [[ARG]], i64 [[I8]] |
| ; CHECK-NEXT: [[I13]] = add nsw i32 [[I7]], -1 |
| ; CHECK-NEXT: [[I14:%.*]] = icmp sgt i32 [[I7]], 0 |
| ; CHECK-NEXT: br i1 [[I14]], label [[BB6]], label [[BB4:%.*]] |
| ; |
| bb: |
| %i = icmp sgt i32 %arg2, -1 |
| br i1 %i, label %bb3, label %bb5 |
| |
| bb3: ; preds = %bb |
| br label %bb6 |
| |
| bb4: ; preds = %bb6 |
| br label %bb5 |
| |
| bb5: ; preds = %bb4, %bb |
| ret i32 12 |
| |
| bb6: ; preds = %bb6, %bb3 |
| %i7 = phi i32 [ %i13, %bb6 ], [ %arg2, %bb3 ] |
| %i8 = zext i32 %i7 to i64 |
| %i9 = getelementptr inbounds %struct.S, ptr %arg1, i64 %i8 |
| %i10 = getelementptr inbounds %struct.S, ptr %arg, i64 %i8 |
| tail call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(12) %i10, ptr noundef nonnull align 4 dereferenceable(12) %i9, i64 12, i1 false) |
| %i13 = add nsw i32 %i7, -1 |
| %i14 = icmp sgt i32 %i7, 0 |
| br i1 %i14, label %bb6, label %bb4 |
| } |
| |
| ; unsigned copy_noalias_opposite_stride(S* __restrict__ a, S* b, int n) { |
| ; for (int i = 0, j = n; i < n && j >= 0; i++, j--) { |
| ; a[i] = b[j]; |
| ; } |
| ; return sizeof(a[0]); |
| ; } |
| |
| ; Function Attrs: nofree nosync nounwind uwtable mustprogress |
| define dso_local i32 @copy_noalias_opposite_stride(ptr noalias nocapture %arg, ptr nocapture readonly %arg1, i32 %arg2) local_unnamed_addr { |
| ; CHECK-LABEL: @copy_noalias_opposite_stride( |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I:%.*]] = icmp sgt i32 [[ARG2:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[I]], label [[BB3:%.*]], label [[BB5:%.*]] |
| ; CHECK: bb3: |
| ; CHECK-NEXT: br label [[BB6:%.*]] |
| ; CHECK: bb4: |
| ; CHECK-NEXT: br label [[BB5]] |
| ; CHECK: bb5: |
| ; CHECK-NEXT: ret i32 12 |
| ; CHECK: bb6: |
| ; CHECK-NEXT: [[I7:%.*]] = phi i32 [ [[I16:%.*]], [[BB6]] ], [ [[ARG2]], [[BB3]] ] |
| ; CHECK-NEXT: [[I8:%.*]] = phi i32 [ [[I15:%.*]], [[BB6]] ], [ 0, [[BB3]] ] |
| ; CHECK-NEXT: [[I9:%.*]] = zext i32 [[I7]] to i64 |
| ; CHECK-NEXT: [[I10:%.*]] = getelementptr inbounds [[STRUCT_S:%.*]], ptr [[ARG1:%.*]], i64 [[I9]] |
| ; CHECK-NEXT: [[I11:%.*]] = zext i32 [[I8]] to i64 |
| ; CHECK-NEXT: [[I12:%.*]] = getelementptr inbounds [[STRUCT_S]], ptr [[ARG:%.*]], i64 [[I11]] |
| ; CHECK-NEXT: tail call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(12) [[I12]], ptr noundef nonnull align 4 dereferenceable(12) [[I10]], i64 12, i1 false) |
| ; CHECK-NEXT: [[I15]] = add nuw nsw i32 [[I8]], 1 |
| ; CHECK-NEXT: [[I16]] = add nsw i32 [[I7]], -1 |
| ; CHECK-NEXT: [[I17:%.*]] = icmp slt i32 [[I15]], [[ARG2]] |
| ; CHECK-NEXT: [[I18:%.*]] = icmp sgt i32 [[I7]], 0 |
| ; CHECK-NEXT: [[I19:%.*]] = and i1 [[I17]], [[I18]] |
| ; CHECK-NEXT: br i1 [[I19]], label [[BB6]], label [[BB4:%.*]] |
| ; |
| bb: |
| %i = icmp sgt i32 %arg2, 0 |
| br i1 %i, label %bb3, label %bb5 |
| |
| bb3: ; preds = %bb |
| br label %bb6 |
| |
| bb4: ; preds = %bb6 |
| br label %bb5 |
| |
| bb5: ; preds = %bb4, %bb |
| ret i32 12 |
| |
| bb6: ; preds = %bb6, %bb3 |
| %i7 = phi i32 [ %i16, %bb6 ], [ %arg2, %bb3 ] |
| %i8 = phi i32 [ %i15, %bb6 ], [ 0, %bb3 ] |
| %i9 = zext i32 %i7 to i64 |
| %i10 = getelementptr inbounds %struct.S, ptr %arg1, i64 %i9 |
| %i11 = zext i32 %i8 to i64 |
| %i12 = getelementptr inbounds %struct.S, ptr %arg, i64 %i11 |
| tail call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(12) %i12, ptr noundef nonnull align 4 dereferenceable(12) %i10, i64 12, i1 false) |
| %i15 = add nuw nsw i32 %i8, 1 |
| %i16 = add nsw i32 %i7, -1 |
| %i17 = icmp slt i32 %i15, %arg2 |
| %i18 = icmp sgt i32 %i7, 0 |
| %i19 = and i1 %i17, %i18 |
| br i1 %i19, label %bb6, label %bb4 |
| } |
| |
| %struct.SPacked = type <{ i32, i32, i8 }> |
| |
| ; Function Attrs: nofree nounwind uwtable mustprogress |
| define dso_local i32 @copy_noalias_packed(ptr noalias nocapture %a, ptr nocapture readonly %b, i32 %n) local_unnamed_addr { |
| ; CHECK-LABEL: @copy_noalias_packed( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP7:%.*]] = icmp sgt i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[CMP7]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_COND_CLEANUP:%.*]] |
| ; CHECK: for.body.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[N]] to i64 |
| ; CHECK-NEXT: [[TMP1:%.*]] = mul nuw nsw i64 [[TMP0]], 9 |
| ; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 1 [[A:%.*]], ptr align 1 [[B:%.*]], i64 [[TMP1]], i1 false) |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.cond.cleanup.loopexit: |
| ; CHECK-NEXT: br label [[FOR_COND_CLEANUP]] |
| ; CHECK: for.cond.cleanup: |
| ; CHECK-NEXT: ret i32 9 |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[I_08:%.*]] = phi i32 [ [[INC:%.*]], [[FOR_BODY]] ], [ 0, [[FOR_BODY_PREHEADER]] ] |
| ; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[I_08]] to i64 |
| ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [[STRUCT_SPACKED:%.*]], ptr [[B]], i64 [[IDXPROM]] |
| ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds [[STRUCT_SPACKED]], ptr [[A]], i64 [[IDXPROM]] |
| ; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[I_08]], 1 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[INC]], [[N]] |
| ; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_COND_CLEANUP_LOOPEXIT:%.*]] |
| ; |
| entry: |
| %cmp7 = icmp sgt i32 %n, 0 |
| br i1 %cmp7, label %for.body.preheader, label %for.cond.cleanup |
| |
| for.body.preheader: ; preds = %entry |
| br label %for.body |
| |
| for.cond.cleanup.loopexit: ; preds = %for.body |
| br label %for.cond.cleanup |
| |
| for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry |
| ret i32 9 |
| |
| for.body: ; preds = %for.body, %for.body.preheader |
| %i.08 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ] |
| %idxprom = zext i32 %i.08 to i64 |
| %arrayidx = getelementptr inbounds %struct.SPacked, ptr %b, i64 %idxprom |
| %arrayidx2 = getelementptr inbounds %struct.SPacked, ptr %a, i64 %idxprom |
| call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 dereferenceable(9) %arrayidx2, ptr nonnull align 1 dereferenceable(9) %arrayidx, i64 9, i1 false) |
| %inc = add nuw nsw i32 %i.08, 1 |
| %cmp = icmp slt i32 %inc, %n |
| br i1 %cmp, label %for.body, label %for.cond.cleanup.loopexit |
| } |
| |
| %struct.SAligned = type { i32, i32, i8, [7 x i8] } |
| |
| define dso_local i32 @copy_noalias_aligned(ptr noalias nocapture %a, ptr nocapture readonly %b, i32 %n) local_unnamed_addr { |
| ; CHECK-LABEL: @copy_noalias_aligned( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP7:%.*]] = icmp sgt i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[CMP7]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_COND_CLEANUP:%.*]] |
| ; CHECK: for.body.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[N]] to i64 |
| ; CHECK-NEXT: [[TMP1:%.*]] = shl nuw nsw i64 [[TMP0]], 4 |
| ; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 16 [[A:%.*]], ptr align 16 [[B:%.*]], i64 [[TMP1]], i1 false) |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.cond.cleanup.loopexit: |
| ; CHECK-NEXT: br label [[FOR_COND_CLEANUP]] |
| ; CHECK: for.cond.cleanup: |
| ; CHECK-NEXT: ret i32 16 |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[I_08:%.*]] = phi i32 [ [[INC:%.*]], [[FOR_BODY]] ], [ 0, [[FOR_BODY_PREHEADER]] ] |
| ; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[I_08]] to i64 |
| ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [[STRUCT_SALIGNED:%.*]], ptr [[B]], i64 [[IDXPROM]] |
| ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds [[STRUCT_SALIGNED]], ptr [[A]], i64 [[IDXPROM]] |
| ; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[I_08]], 1 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[INC]], [[N]] |
| ; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_COND_CLEANUP_LOOPEXIT:%.*]] |
| ; |
| entry: |
| %cmp7 = icmp sgt i32 %n, 0 |
| br i1 %cmp7, label %for.body.preheader, label %for.cond.cleanup |
| |
| for.body.preheader: ; preds = %entry |
| br label %for.body |
| |
| for.cond.cleanup.loopexit: ; preds = %for.body |
| br label %for.cond.cleanup |
| |
| for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry |
| ret i32 16 |
| |
| for.body: ; preds = %for.body, %for.body.preheader |
| %i.08 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ] |
| %idxprom = zext i32 %i.08 to i64 |
| %arrayidx = getelementptr inbounds %struct.SAligned, ptr %b, i64 %idxprom |
| %arrayidx2 = getelementptr inbounds %struct.SAligned, ptr %a, i64 %idxprom |
| call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 16 dereferenceable(16) %arrayidx2, ptr nonnull align 16 dereferenceable(16) %arrayidx, i64 16, i1 false) |
| %inc = add nuw nsw i32 %i.08, 1 |
| %cmp = icmp slt i32 %inc, %n |
| br i1 %cmp, label %for.body, label %for.cond.cleanup.loopexit |
| } |
| |
| ; Function Attrs: argmemonly nofree nosync nounwind willreturn |
| declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #1 |
