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[LAA] Add etra tests with strides with different signs.
Extra tests with strides with different signs for #88039.
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‎llvm/test/Analysis/LoopAccessAnalysis/non-constant-strides-forward.ll

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@@ -180,3 +180,234 @@ loop:
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exit:
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ret void
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}
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; Tests with accesses with strides with different signs.
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define void @strides_with_different_directions_1(ptr %A) {
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; CHECK-LABEL: 'strides_with_different_directions_1'
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; CHECK-NEXT: loop:
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; CHECK-NEXT: Report: unsafe dependent memory operations in loop. Use #pragma clang loop distribute(enable) to allow loop distribution to attempt to isolate the offending operations into a separate loop
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; CHECK-NEXT: Unknown data dependence.
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; CHECK-NEXT: Dependences:
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; CHECK-NEXT: Unknown:
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; CHECK-NEXT: %l = load i32, ptr %gep.mul.2, align 4 ->
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; CHECK-NEXT: store i32 %add, ptr %gep, align 4
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; CHECK-EMPTY:
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; CHECK-NEXT: Run-time memory checks:
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; CHECK-NEXT: Grouped accesses:
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; CHECK-EMPTY:
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; CHECK-NEXT: Non vectorizable stores to invariant address were not found in loop.
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; CHECK-NEXT: SCEV assumptions:
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; CHECK-EMPTY:
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; CHECK-NEXT: Expressions re-written:
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;
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entry:
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br label %loop
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loop:
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%iv.1 = phi i64 [ 0, %entry ], [ %iv.1.next, %loop ]
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%iv.2 = phi i64 [ 300, %entry ], [ %iv.2.next, %loop ]
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%gep.mul.2 = getelementptr inbounds i32, ptr %A, i64 %iv.1
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%l = load i32, ptr %gep.mul.2, align 4
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%add = add nsw i32 %l, 5
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%gep = getelementptr inbounds i32, ptr %A, i64 %iv.2
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store i32 %add, ptr %gep, align 4
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%iv.1.next = add nuw nsw i64 %iv.1, 1
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%iv.2.next = add nsw i64 %iv.2, -1
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%exitcond.not = icmp eq i64 %iv.1.next, 256
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br i1 %exitcond.not, label %exit, label %loop
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exit:
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ret void
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}
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define void @strides_with_different_directions_2(ptr %A) {
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; CHECK-LABEL: 'strides_with_different_directions_2'
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; CHECK-NEXT: loop:
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; CHECK-NEXT: Report: unsafe dependent memory operations in loop. Use #pragma clang loop distribute(enable) to allow loop distribution to attempt to isolate the offending operations into a separate loop
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; CHECK-NEXT: Unknown data dependence.
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; CHECK-NEXT: Dependences:
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; CHECK-NEXT: Unknown:
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; CHECK-NEXT: %l = load i32, ptr %gep.mul.2, align 4 ->
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; CHECK-NEXT: store i32 %add, ptr %gep, align 4
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; CHECK-EMPTY:
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; CHECK-NEXT: Run-time memory checks:
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; CHECK-NEXT: Grouped accesses:
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; CHECK-EMPTY:
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; CHECK-NEXT: Non vectorizable stores to invariant address were not found in loop.
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; CHECK-NEXT: SCEV assumptions:
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; CHECK-EMPTY:
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; CHECK-NEXT: Expressions re-written:
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;
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entry:
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br label %loop
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loop:
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%iv.1 = phi i64 [ 0, %entry ], [ %iv.1.next, %loop ]
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%iv.2 = phi i64 [ 300, %entry ], [ %iv.2.next, %loop ]
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%gep.mul.2 = getelementptr inbounds i32, ptr %A, i64 %iv.2
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%l = load i32, ptr %gep.mul.2, align 4
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%add = add nsw i32 %l, 5
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%gep = getelementptr inbounds i32, ptr %A, i64 %iv.1
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store i32 %add, ptr %gep, align 4
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%iv.1.next = add nuw nsw i64 %iv.1, 1
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%iv.2.next = add nsw i64 %iv.2, -1
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%exitcond.not = icmp eq i64 %iv.1.next, 256
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br i1 %exitcond.not, label %exit, label %loop
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exit:
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ret void
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}
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define void @strides_with_different_directions_3(ptr %A) {
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; CHECK-LABEL: 'strides_with_different_directions_3'
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; CHECK-NEXT: loop:
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; CHECK-NEXT: Report: unsafe dependent memory operations in loop. Use #pragma clang loop distribute(enable) to allow loop distribution to attempt to isolate the offending operations into a separate loop
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; CHECK-NEXT: Unknown data dependence.
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; CHECK-NEXT: Dependences:
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; CHECK-NEXT: Unknown:
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; CHECK-NEXT: %l = load i32, ptr %gep.mul.2, align 4 ->
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; CHECK-NEXT: store i32 %add, ptr %gep, align 4
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; CHECK-EMPTY:
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; CHECK-NEXT: Run-time memory checks:
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; CHECK-NEXT: Grouped accesses:
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; CHECK-EMPTY:
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; CHECK-NEXT: Non vectorizable stores to invariant address were not found in loop.
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; CHECK-NEXT: SCEV assumptions:
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; CHECK-EMPTY:
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; CHECK-NEXT: Expressions re-written:
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;
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entry:
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br label %loop
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loop:
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%iv.1 = phi i64 [ 0, %entry ], [ %iv.1.next, %loop ]
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%iv.2 = phi i64 [ 600, %entry ], [ %iv.2.next, %loop ]
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%gep.mul.2 = getelementptr inbounds i32, ptr %A, i64 %iv.1
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%l = load i32, ptr %gep.mul.2, align 4
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%add = add nsw i32 %l, 5
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%gep = getelementptr inbounds i32, ptr %A, i64 %iv.2
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store i32 %add, ptr %gep, align 4
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%iv.1.next = add nuw nsw i64 %iv.1, 1
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%iv.2.next = add nsw i64 %iv.2, -2
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%exitcond.not = icmp eq i64 %iv.1.next, 256
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br i1 %exitcond.not, label %exit, label %loop
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exit:
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ret void
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}
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define void @strides_with_different_directions_4(ptr %A) {
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; CHECK-LABEL: 'strides_with_different_directions_4'
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; CHECK-NEXT: loop:
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; CHECK-NEXT: Report: unsafe dependent memory operations in loop. Use #pragma clang loop distribute(enable) to allow loop distribution to attempt to isolate the offending operations into a separate loop
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; CHECK-NEXT: Unknown data dependence.
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; CHECK-NEXT: Dependences:
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; CHECK-NEXT: Unknown:
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; CHECK-NEXT: %l = load i32, ptr %gep.mul.2, align 4 ->
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; CHECK-NEXT: store i32 %add, ptr %gep, align 4
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; CHECK-EMPTY:
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; CHECK-NEXT: Run-time memory checks:
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; CHECK-NEXT: Grouped accesses:
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; CHECK-EMPTY:
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; CHECK-NEXT: Non vectorizable stores to invariant address were not found in loop.
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; CHECK-NEXT: SCEV assumptions:
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; CHECK-EMPTY:
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; CHECK-NEXT: Expressions re-written:
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;
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entry:
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br label %loop
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loop:
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%iv.1 = phi i64 [ 0, %entry ], [ %iv.1.next, %loop ]
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%iv.2 = phi i64 [ 600, %entry ], [ %iv.2.next, %loop ]
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%gep.mul.2 = getelementptr inbounds i32, ptr %A, i64 %iv.2
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%l = load i32, ptr %gep.mul.2, align 4
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%add = add nsw i32 %l, 5
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%gep = getelementptr inbounds i32, ptr %A, i64 %iv.1
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store i32 %add, ptr %gep, align 4
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%iv.1.next = add nuw nsw i64 %iv.1, 1
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%iv.2.next = add nsw i64 %iv.2, -2
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%exitcond.not = icmp eq i64 %iv.1.next, 256
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br i1 %exitcond.not, label %exit, label %loop
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exit:
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ret void
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}
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define void @non_constant_strides_with_different_directions_1(ptr %A) {
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; CHECK-LABEL: 'non_constant_strides_with_different_directions_1'
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; CHECK-NEXT: loop:
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; CHECK-NEXT: Report: unsafe dependent memory operations in loop. Use #pragma clang loop distribute(enable) to allow loop distribution to attempt to isolate the offending operations into a separate loop
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; CHECK-NEXT: Unknown data dependence.
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; CHECK-NEXT: Dependences:
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; CHECK-NEXT: Unknown:
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; CHECK-NEXT: %l = load i32, ptr %gep.mul.2, align 4 ->
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; CHECK-NEXT: store i32 %add, ptr %gep, align 4
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; CHECK-EMPTY:
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; CHECK-NEXT: Run-time memory checks:
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; CHECK-NEXT: Grouped accesses:
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; CHECK-EMPTY:
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; CHECK-NEXT: Non vectorizable stores to invariant address were not found in loop.
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; CHECK-NEXT: SCEV assumptions:
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; CHECK-EMPTY:
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; CHECK-NEXT: Expressions re-written:
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;
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entry:
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br label %loop
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loop:
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%iv.1 = phi i64 [ 0, %entry ], [ %iv.1.next, %loop ]
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%iv.2 = phi i64 [ 300, %entry ], [ %iv.2.next, %loop ]
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%iv.mul.2 = shl nuw nsw i64 %iv.1, 1
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%gep.mul.2 = getelementptr inbounds i32, ptr %A, i64 %iv.mul.2
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%l = load i32, ptr %gep.mul.2, align 4
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%add = add nsw i32 %l, 5
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%gep = getelementptr inbounds i32, ptr %A, i64 %iv.2
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store i32 %add, ptr %gep, align 4
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%iv.1.next = add nuw nsw i64 %iv.1, 1
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%iv.2.next = add nsw i64 %iv.2, -1
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%exitcond.not = icmp eq i64 %iv.1.next, 256
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br i1 %exitcond.not, label %exit, label %loop
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exit:
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ret void
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}
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define void @non_constant_strides_with_different_directions_2(ptr %A) {
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; CHECK-LABEL: 'non_constant_strides_with_different_directions_2'
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; CHECK-NEXT: loop:
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; CHECK-NEXT: Report: unsafe dependent memory operations in loop. Use #pragma clang loop distribute(enable) to allow loop distribution to attempt to isolate the offending operations into a separate loop
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; CHECK-NEXT: Unknown data dependence.
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; CHECK-NEXT: Dependences:
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; CHECK-NEXT: Unknown:
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; CHECK-NEXT: %l = load i32, ptr %gep.mul.2, align 4 ->
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; CHECK-NEXT: store i32 %add, ptr %gep, align 4
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; CHECK-EMPTY:
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; CHECK-NEXT: Run-time memory checks:
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; CHECK-NEXT: Grouped accesses:
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; CHECK-EMPTY:
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; CHECK-NEXT: Non vectorizable stores to invariant address were not found in loop.
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; CHECK-NEXT: SCEV assumptions:
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; CHECK-EMPTY:
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; CHECK-NEXT: Expressions re-written:
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;
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entry:
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br label %loop
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loop:
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%iv.1 = phi i64 [ 0, %entry ], [ %iv.1.next, %loop ]
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%iv.2 = phi i64 [ 300, %entry ], [ %iv.2.next, %loop ]
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%iv.mul.2 = shl nuw nsw i64 %iv.2, 1
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%gep.mul.2 = getelementptr inbounds i32, ptr %A, i64 %iv.mul.2
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%l = load i32, ptr %gep.mul.2, align 4
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%add = add nsw i32 %l, 5
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%gep = getelementptr inbounds i32, ptr %A, i64 %iv.1
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store i32 %add, ptr %gep, align 4
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%iv.1.next = add nuw nsw i64 %iv.1, 1
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%iv.2.next = add nsw i64 %iv.2, -1
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%exitcond.not = icmp eq i64 %iv.1.next, 256
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br i1 %exitcond.not, label %exit, label %loop
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exit:
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ret void
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}

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