| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -loop-vectorize -force-vector-width=2 %s -S | FileCheck %s |
| |
| ; Test case for PR47343. Make sure LCSSA phis are create correctly when |
| ; expanding the memory runtime checks. |
| |
| @f.e = external global i32, align 1 |
| @d = external global i8*, align 1 |
| |
| declare i1 @cond() |
| |
| define void @f() { |
| ; CHECK-LABEL: @f( |
| |
| ; CHECK: outer.header: |
| ; CHECK-NEXT: [[TMP0:%.*]] = load i8*, i8** @d, align 1 |
| ; CHECK-NEXT: [[C_0:%.*]] = call i1 @cond() |
| ; CHECK-NEXT: br i1 [[C_0]], label %outer.exit.0, label %inner.1.header.preheader |
| |
| ; CHECK: outer.exit.0: |
| ; CHECK-NEXT: [[DOTLCSSA:%.*]] = phi i8* [ [[TMP0]], %outer.header ] |
| ; CHECK-NEXT: br label %loop.preheader |
| |
| ; CHECK: outer.exit.1: |
| ; CHECK-NEXT: [[DOTLCSSA1:%.*]] = phi i8* [ [[TMP0]], %inner.1.latch ] |
| ; CHECK-NEXT: br label %loop.preheader |
| |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: [[TMP1:%.*]] = phi i8* [ [[DOTLCSSA]], %outer.exit.0 ], [ [[DOTLCSSA1]], %outer.exit.1 ] |
| ; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_MEMCHECK:%.*]] |
| |
| ; CHECK: vector.memcheck: |
| ; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, i8* [[TMP1]], i64 1 |
| ; CHECK-NEXT: [[BOUND0:%.*]] = icmp ult i8* bitcast (i32* @f.e to i8*), [[SCEVGEP]] |
| ; CHECK-NEXT: [[BOUND1:%.*]] = icmp ult i8* [[TMP0]], getelementptr (i8, i8* bitcast (i32* @f.e to i8*), i64 1) |
| ; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]] |
| ; CHECK-NEXT: [[MEMCHECK_CONFLICT:%.*]] = and i1 [[FOUND_CONFLICT]], true |
| ; CHECK-NEXT: br i1 [[MEMCHECK_CONFLICT]], label [[SCALAR_PH]], label [[VECTOR_PH:%.*]] |
| |
| ; CHECK: vector.ph: |
| ; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] |
| |
| ; CHECK: vector.body: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[TMP2:%.*]] = add i32 [[INDEX]], 0 |
| ; CHECK-NEXT: store i32 0, i32* @f.e, align 1, !alias.scope !0, !noalias !3 |
| ; CHECK-NEXT: store i32 0, i32* @f.e, align 1, !alias.scope !0, !noalias !3 |
| ; CHECK-NEXT: store i8 10, i8* [[TMP0]], align 1 |
| ; CHECK-NEXT: store i8 10, i8* [[TMP0]], align 1 |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add i32 [[INDEX]], 2 |
| ; CHECK-NEXT: [[TMP3:%.*]] = icmp eq i32 [[INDEX_NEXT]], 500 |
| ; CHECK-NEXT: br i1 [[TMP3]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], [[LOOP5:!llvm.loop !.*]] |
| |
| ; CHECK: middle.block: |
| ; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i32 500, 500 |
| ; CHECK-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]] |
| |
| ; CHECK: scalar.ph: |
| ; CHECK-NEXT: [[TMP4:%.*]] = phi i8* [ [[TMP1]], %vector.memcheck ], [ [[TMP1]], %loop.preheader ], [ [[TMP1]], %middle.block ] |
| ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i32 [ 500, %middle.block ], [ 0, %loop.preheader ], [ 0, %vector.memcheck ] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; |
| entry: |
| br label %outer.header |
| |
| outer.header: ; preds = %cleanup, %entry |
| %0 = load i8*, i8** @d, align 1 |
| %c.0 = call i1 @cond() |
| br i1 %c.0, label %outer.exit.0, label %inner.1.header |
| |
| inner.1.header: ; preds = %if.end, %for.body3.lr.ph.outer |
| %c.1 = call i1 @cond() |
| br i1 %c.1, label %inner.1.latch, label %outer.latch |
| |
| inner.1.latch: ; preds = %land.end |
| %c.2 = call i1 @cond() |
| br i1 %c.2, label %outer.exit.1, label %inner.1.header |
| |
| outer.latch: ; preds = %land.end |
| br label %outer.header |
| |
| |
| outer.exit.0: ; preds = %if.end, %if.end.us.us.us |
| br label %loop |
| |
| outer.exit.1: ; preds = %if.end, %if.end.us.us.us |
| br label %loop |
| |
| loop: ; preds = %if.end.us.us.us, %for.body3.lr.ph.outer |
| %iv = phi i32 [ %iv.next, %loop ], [ 0, %outer.exit.0 ], [ 0, %outer.exit.1 ] |
| %conv6.us.us.us = zext i1 false to i32 |
| store i32 %conv6.us.us.us, i32* @f.e, align 1 |
| store i8 10, i8* %0, align 1 |
| %iv.next = add nsw i32 %iv, 1 |
| %ec = icmp eq i32 %iv.next, 500 |
| br i1 %ec, label %exit, label %loop |
| |
| exit: |
| ret void |
| } |