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; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 5
; RUN: opt -passes='print<access-info>' -disable-output 2>&1 < %s | FileCheck %s
define void @test(ptr noalias %x, ptr noalias %y, ptr noalias %z) {
; CHECK-LABEL: 'test'
; 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: Unsafe indirect dependence.
; CHECK-NEXT: Dependences:
; CHECK-NEXT: IndirectUnsafe:
; CHECK-NEXT: %load = load double, ptr %gep.sel, align 8 ->
; CHECK-NEXT: store double %load, ptr %gep.sel2, 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:
;
entry:
%gep.y = getelementptr double, ptr %y, i64 -32
br label %loop
loop:
%iv = phi i64 [ %iv.next, %loop ], [ 0, %entry ]
%icmp = icmp ule i64 %iv, 32
%sel = select i1 %icmp, ptr %x, ptr %gep.y
%gep.sel = getelementptr inbounds double, ptr %sel, i64 %iv
%load = load double, ptr %gep.sel, align 8
%sel2 = select i1 %icmp, ptr %y, ptr %z
%gep.sel2 = getelementptr inbounds double, ptr %sel2, i64 %iv
store double %load, ptr %gep.sel2, align 8
%iv.next = add nuw nsw i64 %iv, 1
%exit.cond = icmp eq i64 %iv, 94
br i1 %exit.cond, label %exit, label %loop
exit:
ret void
}
; Same as previous test, but with selects replaced by phis in the same block.
define void @test_phi(ptr noalias %x, ptr noalias %y, ptr noalias %z) {
; CHECK-LABEL: 'test_phi'
; 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: Unsafe indirect dependence.
; CHECK-NEXT: Dependences:
; CHECK-NEXT: IndirectUnsafe:
; CHECK-NEXT: %load = load double, ptr %gep.sel, align 8 ->
; CHECK-NEXT: store double %load, ptr %gep.sel2, 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:
;
entry:
%gep.y = getelementptr double, ptr %y, i64 -32
br label %loop
loop:
%iv = phi i64 [ %iv.next, %latch ], [ 0, %entry ]
%icmp = icmp ule i64 %iv, 32
br i1 %icmp, label %if, label %latch
if:
br label %latch
latch:
%sel = phi ptr [ %x, %if ], [ %gep.y, %loop ]
%sel2 = phi ptr [ %y, %if ], [ %z, %loop ]
%gep.sel = getelementptr inbounds double, ptr %sel, i64 %iv
%load = load double, ptr %gep.sel, align 8
%gep.sel2 = getelementptr inbounds double, ptr %sel2, i64 %iv
store double %load, ptr %gep.sel2, align 8
%iv.next = add nuw nsw i64 %iv, 1
%exit.cond = icmp eq i64 %iv, 94
br i1 %exit.cond, label %exit, label %loop
exit:
ret void
}
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