derek.holloway
7502bf64a4
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424 lines
15 KiB
LLVM
424 lines
15 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 4
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; RUN: opt -passes='print<access-info><allow-partial>' -disable-output %s 2>&1 | FileCheck %s
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target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
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declare void @llvm.assume(i1)
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define void @different_non_constant_strides_known_forward(ptr %A) {
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; CHECK-LABEL: 'different_non_constant_strides_known_forward'
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; CHECK-NEXT: loop:
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; CHECK-NEXT: Memory dependences are safe
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; CHECK-NEXT: Dependences:
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; CHECK-NEXT: Forward:
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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 = phi i64 [ 0, %entry ], [ %iv.next, %loop ]
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%iv.mul.2 = shl nuw nsw i64 %iv, 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
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store i32 %add, ptr %gep, align 4
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%iv.next = add nuw nsw i64 %iv, 1
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%exitcond.not = icmp eq i64 %iv.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 @different_non_constant_strides_known_forward_min_distance_3(ptr %A) {
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; CHECK-LABEL: 'different_non_constant_strides_known_forward_min_distance_3'
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; CHECK-NEXT: loop:
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; CHECK-NEXT: Memory dependences are safe
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; CHECK-NEXT: Dependences:
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; CHECK-NEXT: Forward:
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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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%A.3 = getelementptr inbounds i8, ptr %A, i64 3
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br label %loop
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loop:
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%iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ]
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%iv.mul.2 = shl nuw nsw i64 %iv, 1
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%gep.mul.2 = getelementptr inbounds i32, ptr %A.3, 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
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store i32 %add, ptr %gep, align 4
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%iv.next = add nuw nsw i64 %iv, 1
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%exitcond.not = icmp eq i64 %iv.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 @different_non_constant_strides_known_forward_via_assume(ptr %A, i64 %scale) {
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; CHECK-LABEL: 'different_non_constant_strides_known_forward_via_assume'
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; CHECK-NEXT: loop:
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; CHECK-NEXT: Report: cannot identify array bounds
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; CHECK-NEXT: Dependences:
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; CHECK-NEXT: Run-time memory checks:
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; CHECK-NEXT: Grouped accesses:
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; CHECK-NEXT: Group GRP0:
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; CHECK-NEXT: (Low: %A High: (1024 + %A))
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; CHECK-NEXT: Member: {%A,+,4}<nuw><%loop>
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; CHECK-NEXT: Generated run-time checks are incomplete
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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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%c = icmp sgt i64 %scale, 0
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call void @llvm.assume(i1 %c)
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br label %loop
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loop:
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%iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ]
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%iv.mul.2 = shl nuw nsw i64 %iv, %scale
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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
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store i32 %add, ptr %gep, align 4
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%iv.next = add nuw nsw i64 %iv, 1
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%exitcond.not = icmp eq i64 %iv.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 @different_non_constant_strides_known_forward_via_assume_min_distance_3(ptr %A, i64 %scale) {
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; CHECK-LABEL: 'different_non_constant_strides_known_forward_via_assume_min_distance_3'
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; CHECK-NEXT: loop:
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; CHECK-NEXT: Report: cannot identify array bounds
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; CHECK-NEXT: Dependences:
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; CHECK-NEXT: Run-time memory checks:
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; CHECK-NEXT: Grouped accesses:
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; CHECK-NEXT: Group GRP0:
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; CHECK-NEXT: (Low: %A High: (1024 + %A))
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; CHECK-NEXT: Member: {%A,+,4}<nuw><%loop>
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; CHECK-NEXT: Generated run-time checks are incomplete
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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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%A.3 = getelementptr inbounds i8, ptr %A, i64 3
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%c = icmp sgt i64 %scale, 0
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call void @llvm.assume(i1 %c)
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br label %loop
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loop:
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%iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ]
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%iv.mul.2 = shl nuw nsw i64 %iv, %scale
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%gep.mul.2 = getelementptr inbounds i32, ptr %A.3, 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
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store i32 %add, ptr %gep, align 4
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%iv.next = add nuw nsw i64 %iv, 1
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%exitcond.not = icmp eq i64 %iv.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 @different_non_constant_strides_not_known_forward(ptr %A, i64 %scale) {
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; CHECK-LABEL: 'different_non_constant_strides_not_known_forward'
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; CHECK-NEXT: loop:
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; CHECK-NEXT: Report: cannot identify array bounds
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; CHECK-NEXT: Dependences:
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; CHECK-NEXT: Run-time memory checks:
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; CHECK-NEXT: Grouped accesses:
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; CHECK-NEXT: Group GRP0:
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; CHECK-NEXT: (Low: %A High: (1024 + %A))
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; CHECK-NEXT: Member: {%A,+,4}<nuw><%loop>
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; CHECK-NEXT: Generated run-time checks are incomplete
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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 = phi i64 [ 0, %entry ], [ %iv.next, %loop ]
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%iv.mul.2 = shl nuw nsw i64 %iv, %scale
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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
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store i32 %add, ptr %gep, align 4
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%iv.next = add nuw nsw i64 %iv, 1
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%exitcond.not = icmp eq i64 %iv.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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; 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
|
|
%add = add nsw i32 %l, 5
|
|
%gep = getelementptr inbounds i32, ptr %A, i64 %iv.2
|
|
store i32 %add, ptr %gep, align 4
|
|
%iv.1.next = add nuw nsw i64 %iv.1, 1
|
|
%iv.2.next = add nsw i64 %iv.2, -1
|
|
%exitcond.not = icmp eq i64 %iv.1.next, 256
|
|
br i1 %exitcond.not, label %exit, label %loop
|
|
|
|
exit:
|
|
ret void
|
|
}
|
|
|
|
define void @non_constant_strides_with_different_directions_2(ptr %A) {
|
|
; CHECK-LABEL: 'non_constant_strides_with_different_directions_2'
|
|
; CHECK-NEXT: loop:
|
|
; 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
|
|
; CHECK-NEXT: Unknown data dependence.
|
|
; CHECK-NEXT: Dependences:
|
|
; CHECK-NEXT: Unknown:
|
|
; CHECK-NEXT: %l = load i32, ptr %gep.mul.2, align 4 ->
|
|
; CHECK-NEXT: store i32 %add, ptr %gep, align 4
|
|
; CHECK-EMPTY:
|
|
; CHECK-NEXT: Run-time memory checks:
|
|
; CHECK-NEXT: Grouped accesses:
|
|
; CHECK-EMPTY:
|
|
; CHECK-NEXT: Non vectorizable stores to invariant address were not found in loop.
|
|
; CHECK-NEXT: SCEV assumptions:
|
|
; CHECK-EMPTY:
|
|
; CHECK-NEXT: Expressions re-written:
|
|
;
|
|
entry:
|
|
br label %loop
|
|
|
|
loop:
|
|
%iv.1 = phi i64 [ 0, %entry ], [ %iv.1.next, %loop ]
|
|
%iv.2 = phi i64 [ 300, %entry ], [ %iv.2.next, %loop ]
|
|
%iv.mul.2 = shl nuw nsw i64 %iv.2, 1
|
|
%gep.mul.2 = getelementptr inbounds i32, ptr %A, i64 %iv.mul.2
|
|
%l = load i32, ptr %gep.mul.2, align 4
|
|
%add = add nsw i32 %l, 5
|
|
%gep = getelementptr inbounds i32, ptr %A, i64 %iv.1
|
|
store i32 %add, ptr %gep, align 4
|
|
%iv.1.next = add nuw nsw i64 %iv.1, 1
|
|
%iv.2.next = add nsw i64 %iv.2, -1
|
|
%exitcond.not = icmp eq i64 %iv.1.next, 256
|
|
br i1 %exitcond.not, label %exit, label %loop
|
|
|
|
exit:
|
|
ret void
|
|
}
|