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1; RUN: opt -passes='loop-unroll-full' -disable-verify -disable-loop-unrolling=true --mtriple x86_64-pc-linux-gnu -S -o - %s | FileCheck %s2 3; This checks that the loop full unroller will fire in the new pass manager4; when forced via #pragma in the source (or annotation in the code).5 6; Completely unroll the inner loop7; CHECK-LABEL: @foo8; CHECK: br i19; CHECK-NOT: br i110 11; Function Attrs: noinline nounwind optnone uwtable12define void @foo() local_unnamed_addr #0 {13bb:14 %tmp = alloca [5 x ptr], align 1615 br label %bb7.preheader16 17bb3.loopexit: ; preds = %bb1018 %spec.select.lcssa = phi i32 [ %spec.select, %bb10 ]19 %tmp5.not = icmp eq i32 %spec.select.lcssa, 020 br i1 %tmp5.not, label %bb24, label %bb7.preheader21 22bb7.preheader: ; preds = %bb3.loopexit, %bb23 %tmp1.06 = phi i32 [ 5, %bb ], [ %spec.select.lcssa, %bb3.loopexit ]24 br label %bb1025 26bb10: ; preds = %bb10, %bb7.preheader27 %indvars.iv = phi i64 [ 0, %bb7.preheader ], [ %indvars.iv.next, %bb10 ]28 %tmp1.14 = phi i32 [ %tmp1.06, %bb7.preheader ], [ %spec.select, %bb10 ]29 %tmp13 = getelementptr inbounds [5 x ptr], ptr %tmp, i64 0, i64 %indvars.iv30 %tmp14 = load ptr, ptr %tmp13, align 831 %tmp15.not = icmp ne ptr %tmp14, null32 %tmp18 = sext i1 %tmp15.not to i3233 %spec.select = add nsw i32 %tmp1.14, %tmp1834 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 135 %exitcond.not = icmp eq i64 %indvars.iv.next, 536 br i1 %exitcond.not, label %bb3.loopexit, label %bb10, !llvm.loop !137 38bb24: ; preds = %bb3.loopexit39 ret void40}41 42attributes #0 = { nounwind uwtable }43 44!llvm.module.flags = !{!0}45 46!0 = !{i32 1, !"wchar_size", i32 4}47!1 = distinct !{!1, !2}48!2 = !{!"llvm.loop.unroll.full"}49