; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 4
; RUN: opt -passes='print<access-info>' -disable-output < %s 2>&1 | FileCheck %s
define void @forward_dist_7(ptr %A, ptr noalias %B) {
; CHECK-LABEL: 'forward_dist_7'
; 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: Forward loop carried data dependence that prevents store-to-load forwarding.
; CHECK-NEXT: Dependences:
; CHECK-NEXT: ForwardButPreventsForwarding:
; CHECK-NEXT: store i32 0, ptr %gep.2, align 4 ->
; CHECK-NEXT: %l = load i32, ptr %gep.1, 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 = phi i64 [ 0, %entry ], [ %next, %loop ]
%gep.1 = getelementptr i32, ptr %A, i64 %iv
%gep.2 = getelementptr i32, ptr %gep.1, i64 7
store i32 0, ptr %gep.2, align 4
%l = load i32, ptr %gep.1
store i32 %l, ptr %B
%next = add nuw nsw i64 %iv, 1
%ec = icmp eq i64 %iv, 1000
br i1 %ec, label %exit, label %loop
exit:
ret void
}
define void @forward_dist_9(ptr %A, ptr noalias %B) {
; CHECK-LABEL: 'forward_dist_9'
; 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: Forward loop carried data dependence that prevents store-to-load forwarding.
; CHECK-NEXT: Dependences:
; CHECK-NEXT: ForwardButPreventsForwarding:
; CHECK-NEXT: store i32 0, ptr %gep.2, align 4 ->
; CHECK-NEXT: %l = load i32, ptr %gep.1, 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 = phi i64 [ 0, %entry ], [ %next, %loop ]
%gep.1 = getelementptr i32, ptr %A, i64 %iv
%gep.2 = getelementptr i32, ptr %gep.1, i64 9
store i32 0, ptr %gep.2, align 4
%l = load i32, ptr %gep.1
store i32 %l, ptr %B
%next = add nuw nsw i64 %iv, 1
%ec = icmp eq i64 %iv, 1000
br i1 %ec, label %exit, label %loop
exit:
ret void
}
define void @forward_dist_11(ptr %A, ptr noalias %B) {
; CHECK-LABEL: 'forward_dist_11'
; 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: Forward loop carried data dependence that prevents store-to-load forwarding.
; CHECK-NEXT: Dependences:
; CHECK-NEXT: ForwardButPreventsForwarding:
; CHECK-NEXT: store i32 0, ptr %gep.2, align 4 ->
; CHECK-NEXT: %l = load i32, ptr %gep.1, 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 = phi i64 [ 0, %entry ], [ %next, %loop ]
%gep.1 = getelementptr i32, ptr %A, i64 %iv
%gep.2 = getelementptr i32, ptr %gep.1, i64 9
store i32 0, ptr %gep.2, align 4
%l = load i32, ptr %gep.1
store i32 %l, ptr %B
%next = add nuw nsw i64 %iv, 1
%ec = icmp eq i64 %iv, 1000
br i1 %ec, label %exit, label %loop
exit:
ret void
}
define void @forward_dist_13(ptr %A, ptr noalias %B) {
; CHECK-LABEL: 'forward_dist_13'
; 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: Forward loop carried data dependence that prevents store-to-load forwarding.
; CHECK-NEXT: Dependences:
; CHECK-NEXT: ForwardButPreventsForwarding:
; CHECK-NEXT: store i32 0, ptr %gep.2, align 4 ->
; CHECK-NEXT: %l = load i32, ptr %gep.1, 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 = phi i64 [ 0, %entry ], [ %next, %loop ]
%gep.1 = getelementptr i32, ptr %A, i64 %iv
%gep.2 = getelementptr i32, ptr %gep.1, i64 13
store i32 0, ptr %gep.2, align 4
%l = load i32, ptr %gep.1
store i32 %l, ptr %B
%next = add nuw nsw i64 %iv, 1
%ec = icmp eq i64 %iv, 1000
br i1 %ec, label %exit, label %loop
exit:
ret void
}
define void @forward_dist_15(ptr %A, ptr noalias %B) {
; CHECK-LABEL: 'forward_dist_15'
; 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: Forward loop carried data dependence that prevents store-to-load forwarding.
; CHECK-NEXT: Dependences:
; CHECK-NEXT: ForwardButPreventsForwarding:
; CHECK-NEXT: store i32 0, ptr %gep.2, align 4 ->
; CHECK-NEXT: %l = load i32, ptr %gep.1, 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 = phi i64 [ 0, %entry ], [ %next, %loop ]
%gep.1 = getelementptr i32, ptr %A, i64 %iv
%gep.2 = getelementptr i32, ptr %gep.1, i64 13
store i32 0, ptr %gep.2, align 4
%l = load i32, ptr %gep.1
store i32 %l, ptr %B
%next = add nuw nsw i64 %iv, 1
%ec = icmp eq i64 %iv, 1000
br i1 %ec, label %exit, label %loop
exit:
ret void
}
define void @forward_dist_17(ptr %A, ptr noalias %B) {
; CHECK-LABEL: 'forward_dist_17'
; 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: Forward loop carried data dependence that prevents store-to-load forwarding.
; CHECK-NEXT: Dependences:
; CHECK-NEXT: ForwardButPreventsForwarding:
; CHECK-NEXT: store i32 0, ptr %gep.2, align 4 ->
; CHECK-NEXT: %l = load i32, ptr %gep.1, 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 = phi i64 [ 0, %entry ], [ %next, %loop ]
%gep.1 = getelementptr i32, ptr %A, i64 %iv
%gep.2 = getelementptr i32, ptr %gep.1, i64 17
store i32 0, ptr %gep.2, align 4
%l = load i32, ptr %gep.1
store i32 %l, ptr %B
%next = add nuw nsw i64 %iv, 1
%ec = icmp eq i64 %iv, 1000
br i1 %ec, label %exit, label %loop
exit:
ret void
}
define void @forward_dist_19(ptr %A, ptr noalias %B) {
; CHECK-LABEL: 'forward_dist_19'
; 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: Forward loop carried data dependence that prevents store-to-load forwarding.
; CHECK-NEXT: Dependences:
; CHECK-NEXT: ForwardButPreventsForwarding:
; CHECK-NEXT: store i32 0, ptr %gep.2, align 4 ->
; CHECK-NEXT: %l = load i32, ptr %gep.1, 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 = phi i64 [ 0, %entry ], [ %next, %loop ]
%gep.1 = getelementptr i32, ptr %A, i64 %iv
%gep.2 = getelementptr i32, ptr %gep.1, i64 19
store i32 0, ptr %gep.2, align 4
%l = load i32, ptr %gep.1
store i32 %l, ptr %B
%next = add nuw nsw i64 %iv, 1
%ec = icmp eq i64 %iv, 1000
br i1 %ec, label %exit, label %loop
exit:
ret void
}
@A = global [37 x [37 x double]] zeroinitializer, align 8
define void @unknown_loop_bounds(i64 %x, i64 %y) {
; CHECK-LABEL: 'unknown_loop_bounds'
; CHECK-NEXT: inner:
; 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: Backward loop carried data dependence that prevents store-to-load forwarding.
; CHECK-NEXT: Dependences:
; CHECK-NEXT: BackwardVectorizableButPreventsForwarding:
; CHECK-NEXT: %l = load double, ptr %gep.0, align 8 ->
; CHECK-NEXT: store double %l, ptr %gep.1, align 8
; 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:
; CHECK-NEXT: outer.header:
; CHECK-NEXT: Report: loop is not the innermost loop
; CHECK-NEXT: Dependences:
; 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 %outer.header
outer.header:
%outer.iv = phi i64 [ 0, %entry ], [ %outer.iv.next, %outer.latch ]
%outer.iv.next = add nuw nsw i64 %outer.iv, 1
br label %inner
inner:
%inner.iv = phi i64 [ 0, %outer.header ], [ %inner.iv.next, %inner ]
%gep.0 = getelementptr inbounds [37 x [37 x double]], ptr @A, i64 0, i64 %outer.iv, i64 %inner.iv
%l = load double, ptr %gep.0, align 8
%gep.1 = getelementptr inbounds [37 x [37 x double]], ptr @A, i64 0, i64 %outer.iv.next, i64 %inner.iv
store double %l, ptr %gep.1, align 8
%inner.iv.next = add nuw nsw i64 %inner.iv, 1
%inner.ec = icmp eq i64 %inner.iv.next, %y
br i1 %inner.ec, label %outer.latch, label %inner
outer.latch:
%outer.ec = icmp eq i64 %outer.iv.next, %x
br i1 %outer.ec, label %exit, label %outer.header
exit:
ret void
}
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