; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 5 ; RUN: opt -passes='print' -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 }