| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -S -mtriple=s390x-unknown-linux -mcpu=z13 -passes=loop-vectorize,dce,instcombine -force-vector-width=2 < %s | FileCheck %s |
| ; |
| ; Test that loop vectorizer does not generate vector addresses that must then |
| ; always be extracted. |
| |
| ; Check that the addresses for a scalarized memory access is not extracted |
| ; from a vector register. |
| define i32 @foo(ptr nocapture %A) { |
| ; CHECK-LABEL: @foo( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] |
| ; CHECK: vector.ph: |
| ; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] |
| ; CHECK: vector.body: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[TMP0:%.*]] = shl i64 [[INDEX]], 2 |
| ; CHECK-NEXT: [[TMP1:%.*]] = or disjoint i64 [[TMP0]], 4 |
| ; CHECK-NEXT: [[DOTIDX:%.*]] = shl nsw i64 [[INDEX]], 4 |
| ; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds i8, ptr [[A:%.*]], i64 [[DOTIDX]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[TMP1]] |
| ; CHECK-NEXT: store i32 4, ptr [[TMP2]], align 4 |
| ; CHECK-NEXT: store i32 4, ptr [[TMP3]], align 4 |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2 |
| ; CHECK-NEXT: [[TMP4:%.*]] = icmp eq i64 [[INDEX_NEXT]], 10000 |
| ; CHECK-NEXT: br i1 [[TMP4]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] |
| ; CHECK: middle.block: |
| ; CHECK-NEXT: br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]] |
| ; CHECK: scalar.ph: |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: br i1 poison, label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret i32 poison |
| ; |
| |
| entry: |
| br label %for.body |
| |
| for.body: |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %0 = shl nsw i64 %indvars.iv, 2 |
| %arrayidx = getelementptr inbounds i32, ptr %A, i64 %0 |
| store i32 4, ptr %arrayidx, align 4 |
| %indvars.iv.next = add i64 %indvars.iv, 1 |
| %lftr.wideiv = trunc i64 %indvars.iv.next to i32 |
| %exitcond = icmp eq i32 %lftr.wideiv, 10000 |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: |
| ret i32 poison |
| } |
| |
| |
| ; Check that a load of address is scalarized. |
| define i32 @foo1(ptr nocapture noalias %A, ptr nocapture %PtrPtr) { |
| ; CHECK-LABEL: @foo1( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] |
| ; CHECK: vector.ph: |
| ; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] |
| ; CHECK: vector.body: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[TMP0:%.*]] = or disjoint i64 [[INDEX]], 1 |
| ; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds ptr, ptr [[PTRPTR:%.*]], i64 [[INDEX]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds ptr, ptr [[PTRPTR]], i64 [[TMP0]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = load ptr, ptr [[TMP1]], align 8 |
| ; CHECK-NEXT: [[TMP4:%.*]] = load ptr, ptr [[TMP2]], align 8 |
| ; CHECK-NEXT: [[TMP5:%.*]] = load i32, ptr [[TMP3]], align 4 |
| ; CHECK-NEXT: [[TMP6:%.*]] = load i32, ptr [[TMP4]], align 4 |
| ; CHECK-NEXT: [[TMP7:%.*]] = insertelement <2 x i32> poison, i32 [[TMP5]], i64 0 |
| ; CHECK-NEXT: [[TMP8:%.*]] = insertelement <2 x i32> [[TMP7]], i32 [[TMP6]], i64 1 |
| ; CHECK-NEXT: [[TMP9:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[INDEX]] |
| ; CHECK-NEXT: store <2 x i32> [[TMP8]], ptr [[TMP9]], align 4 |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2 |
| ; CHECK-NEXT: [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT]], 10000 |
| ; CHECK-NEXT: br i1 [[TMP10]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]] |
| ; CHECK: middle.block: |
| ; CHECK-NEXT: br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]] |
| ; CHECK: scalar.ph: |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: br i1 poison, label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret i32 poison |
| ; |
| |
| entry: |
| br label %for.body |
| |
| for.body: |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %ptr = getelementptr inbounds ptr, ptr %PtrPtr, i64 %indvars.iv |
| %el = load ptr, ptr %ptr |
| %v = load i32, ptr %el |
| %arrayidx = getelementptr inbounds i32, ptr %A, i64 %indvars.iv |
| store i32 %v, ptr %arrayidx, align 4 |
| %indvars.iv.next = add i64 %indvars.iv, 1 |
| %lftr.wideiv = trunc i64 %indvars.iv.next to i32 |
| %exitcond = icmp eq i32 %lftr.wideiv, 10000 |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: |
| ret i32 poison |
| } |