| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; PR28705 |
| ; RUN: opt < %s -indvars -S | FileCheck %s |
| |
| ; Check IndVarSimplify doesn't replace external use of the induction var |
| ; "%inc.i.i" with "%.sroa.speculated + 1" because it is not profitable. |
| ; |
| ; |
| define void @foo(i32 %sub.ptr.div.i, i8* %ref.i1174) local_unnamed_addr { |
| ; CHECK-LABEL: @foo( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP_I1137:%.*]] = icmp ugt i32 [[SUB_PTR_DIV_I:%.*]], 3 |
| ; CHECK-NEXT: [[DOTSROA_SPECULATED:%.*]] = select i1 [[CMP_I1137]], i32 3, i32 [[SUB_PTR_DIV_I]] |
| ; CHECK-NEXT: [[CMP6483126:%.*]] = icmp eq i32 [[DOTSROA_SPECULATED]], 0 |
| ; CHECK-NEXT: br i1 [[CMP6483126]], label [[XZ_EXIT:%.*]], label [[FOR_BODY650_LR_PH:%.*]] |
| ; CHECK: for.body650.lr.ph: |
| ; CHECK-NEXT: br label [[FOR_BODY650:%.*]] |
| ; CHECK: loopexit: |
| ; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[DOTSROA_SPECULATED]], 1 |
| ; CHECK-NEXT: br label [[XZ_EXIT]] |
| ; CHECK: XZ.exit: |
| ; CHECK-NEXT: [[DB_SROA_9_0_LCSSA:%.*]] = phi i32 [ 1, [[ENTRY:%.*]] ], [ [[TMP0]], [[LOOPEXIT:%.*]] ] |
| ; CHECK-NEXT: br label [[END:%.*]] |
| ; CHECK: for.body650: |
| ; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[FOR_BODY650_LR_PH]] ], [ [[INC655:%.*]], [[FOR_BODY650]] ] |
| ; CHECK-NEXT: [[IV2:%.*]] = phi i32 [ 1, [[FOR_BODY650_LR_PH]] ], [ [[INC_I_I:%.*]], [[FOR_BODY650]] ] |
| ; CHECK-NEXT: [[ARRAYIDX_I_I1105:%.*]] = getelementptr inbounds i8, i8* [[REF_I1174:%.*]], i32 [[IV2]] |
| ; CHECK-NEXT: store i8 7, i8* [[ARRAYIDX_I_I1105]], align 1 |
| ; CHECK-NEXT: [[INC_I_I]] = add nuw nsw i32 [[IV2]], 1 |
| ; CHECK-NEXT: [[INC655]] = add nuw nsw i32 [[IV]], 1 |
| ; CHECK-NEXT: [[CMP648:%.*]] = icmp eq i32 [[INC655]], [[DOTSROA_SPECULATED]] |
| ; CHECK-NEXT: br i1 [[CMP648]], label [[LOOPEXIT]], label [[FOR_BODY650]] |
| ; CHECK: end: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %cmp.i1137 = icmp ugt i32 %sub.ptr.div.i, 3 |
| %.sroa.speculated = select i1 %cmp.i1137, i32 3, i32 %sub.ptr.div.i |
| %cmp6483126 = icmp eq i32 %.sroa.speculated, 0 |
| br i1 %cmp6483126, label %XZ.exit, label %for.body650.lr.ph |
| |
| for.body650.lr.ph: |
| br label %for.body650 |
| |
| loopexit: |
| %inc.i.i.lcssa = phi i32 [ %inc.i.i, %for.body650 ] |
| br label %XZ.exit |
| |
| XZ.exit: |
| %DB.sroa.9.0.lcssa = phi i32 [ 1, %entry ], [ %inc.i.i.lcssa, %loopexit ] |
| br label %end |
| |
| for.body650: |
| %iv = phi i32 [ 0, %for.body650.lr.ph ], [ %inc655, %for.body650 ] |
| %iv2 = phi i32 [ 1, %for.body650.lr.ph ], [ %inc.i.i, %for.body650 ] |
| %arrayidx.i.i1105 = getelementptr inbounds i8, i8* %ref.i1174, i32 %iv2 |
| store i8 7, i8* %arrayidx.i.i1105, align 1 |
| %inc.i.i = add i32 %iv2, 1 |
| %inc655 = add i32 %iv, 1 |
| %cmp648 = icmp eq i32 %inc655, %.sroa.speculated |
| br i1 %cmp648, label %loopexit, label %for.body650 |
| |
| end: |
| ret void |
| } |