| ; This test checks that the !llvm.loop metadata has been updated after inlining |
| ; so that the start and end locations refer to the inlined DILocations. |
| |
| ; RUN: opt -passes='cgscc(inline),always-inline' %s -S 2>&1 | FileCheck %s |
| ; CHECK: br i1 %{{.*}}, label %middle.block.i, label %vector.body.i, !dbg !{{[0-9]+}}, !llvm.loop [[VECTOR:![0-9]+]] |
| ; CHECK: br i1 %{{.*}}, label %for.cond.cleanup.loopexit.i, label %for.body.i, !dbg !{{[0-9]+}}, !llvm.loop [[SCALAR:![0-9]+]] |
| ; CHECK-DAG: [[VECTOR]] = distinct !{[[VECTOR]], [[START:![0-9]+]], [[END:![0-9]+]], [[IS_VECTORIZED:![0-9]+]]} |
| ; CHECK-DAG: [[SCALAR]] = distinct !{[[SCALAR]], [[START]], [[END]], [[NO_UNROLL:![0-9]+]], [[IS_VECTORIZED]]} |
| ; CHECK-DAG: [[IS_VECTORIZED]] = !{!"llvm.loop.isvectorized", i32 1} |
| ; CHECK-DAG: [[NO_UNROLL]] = !{!"llvm.loop.unroll.runtime.disable"} |
| |
| ; This IR can be generated by running: |
| ; clang -emit-llvm -S -gmlt -O2 inlined.cpp -o - -mllvm -opt-bisect-limit=53 |\ |
| ; opt -loop-vectorize |
| ; |
| ; Where inlined.cpp contains: |
| ; extern int *Array; |
| ; static int bar(unsigned x) |
| ; { |
| ; int Ret = 0; |
| ; for (unsigned i = 0; i < x; ++i) |
| ; { |
| ; Ret += Array[i] * i; |
| ; } |
| ; return Ret; |
| ; } |
| ; |
| ; int foo(unsigned x) |
| ; { |
| ; int Bar = bar(x); |
| ; return Bar; |
| ; } |
| |
| @"?Array@@3PEAHEA" = external dso_local local_unnamed_addr global i32*, align 8 |
| |
| define dso_local i32 @"?foo@@YAHI@Z"(i32 %x) local_unnamed_addr !dbg !8 { |
| entry: |
| %call = call fastcc i32 @"?bar@@YAHI@Z"(i32 %x), !dbg !10 |
| ret i32 %call, !dbg !11 |
| } |
| |
| define internal fastcc i32 @"?bar@@YAHI@Z"(i32 %x) unnamed_addr !dbg !12 { |
| entry: |
| %cmp7 = icmp eq i32 %x, 0, !dbg !13 |
| br i1 %cmp7, label %for.cond.cleanup, label %for.body.lr.ph, !dbg !13 |
| |
| for.body.lr.ph: ; preds = %entry |
| %0 = load i32*, i32** @"?Array@@3PEAHEA", align 8, !dbg !14, !tbaa !15 |
| %wide.trip.count = zext i32 %x to i64, !dbg !14 |
| %min.iters.check = icmp ult i64 %wide.trip.count, 8, !dbg !13 |
| br i1 %min.iters.check, label %scalar.ph, label %vector.ph, !dbg !13 |
| |
| vector.ph: ; preds = %for.body.lr.ph |
| %n.mod.vf = urem i64 %wide.trip.count, 8, !dbg !13 |
| %n.vec = sub i64 %wide.trip.count, %n.mod.vf, !dbg !13 |
| br label %vector.body, !dbg !13 |
| |
| vector.body: ; preds = %vector.body, %vector.ph |
| %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ], !dbg !13 |
| %vec.ind = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %vector.ph ], [ %vec.ind.next, %vector.body ] |
| %vec.phi = phi <4 x i32> [ zeroinitializer, %vector.ph ], [ %17, %vector.body ] |
| %vec.phi2 = phi <4 x i32> [ zeroinitializer, %vector.ph ], [ %18, %vector.body ] |
| %vec.ind4 = phi <4 x i32> [ <i32 0, i32 1, i32 2, i32 3>, %vector.ph ], [ %vec.ind.next7, %vector.body ], !dbg !19 |
| %step.add = add <4 x i64> %vec.ind, <i64 4, i64 4, i64 4, i64 4> |
| %1 = add i64 %index, 0, !dbg !13 |
| %2 = add i64 %index, 1, !dbg !13 |
| %3 = add i64 %index, 2, !dbg !13 |
| %4 = add i64 %index, 3, !dbg !13 |
| %5 = add i64 %index, 4, !dbg !13 |
| %6 = add i64 %index, 5, !dbg !13 |
| %7 = add i64 %index, 6, !dbg !13 |
| %8 = add i64 %index, 7, !dbg !13 |
| %9 = getelementptr inbounds i32, i32* %0, i64 %1, !dbg !19 |
| %10 = getelementptr inbounds i32, i32* %0, i64 %5, !dbg !19 |
| %11 = getelementptr inbounds i32, i32* %9, i32 0, !dbg !19 |
| %12 = bitcast i32* %11 to <4 x i32>*, !dbg !19 |
| %wide.load = load <4 x i32>, <4 x i32>* %12, align 4, !dbg !19, !tbaa !20 |
| %13 = getelementptr inbounds i32, i32* %9, i32 4, !dbg !19 |
| %14 = bitcast i32* %13 to <4 x i32>*, !dbg !19 |
| %wide.load3 = load <4 x i32>, <4 x i32>* %14, align 4, !dbg !19, !tbaa !20 |
| %step.add5 = add <4 x i32> %vec.ind4, <i32 4, i32 4, i32 4, i32 4>, !dbg !19 |
| %15 = mul <4 x i32> %wide.load, %vec.ind4, !dbg !19 |
| %16 = mul <4 x i32> %wide.load3, %step.add5, !dbg !19 |
| %17 = add <4 x i32> %15, %vec.phi, !dbg !19 |
| %18 = add <4 x i32> %16, %vec.phi2, !dbg !19 |
| %index.next = add i64 %index, 8, !dbg !13 |
| %vec.ind.next = add <4 x i64> %step.add, <i64 4, i64 4, i64 4, i64 4> |
| %vec.ind.next7 = add <4 x i32> %step.add5, <i32 4, i32 4, i32 4, i32 4>, !dbg !19 |
| %19 = icmp eq i64 %index.next, %n.vec, !dbg !13 |
| br i1 %19, label %middle.block, label %vector.body, !dbg !13, !llvm.loop !22 |
| |
| middle.block: ; preds = %vector.body |
| %bin.rdx = add <4 x i32> %18, %17, !dbg !19 |
| %rdx.shuf = shufflevector <4 x i32> %bin.rdx, <4 x i32> poison, <4 x i32> <i32 2, i32 3, i32 undef, i32 undef>, !dbg !19 |
| %bin.rdx8 = add <4 x i32> %bin.rdx, %rdx.shuf, !dbg !19 |
| %rdx.shuf9 = shufflevector <4 x i32> %bin.rdx8, <4 x i32> poison, <4 x i32> <i32 1, i32 undef, i32 undef, i32 undef>, !dbg !19 |
| %bin.rdx10 = add <4 x i32> %bin.rdx8, %rdx.shuf9, !dbg !19 |
| %20 = extractelement <4 x i32> %bin.rdx10, i32 0, !dbg !19 |
| %cmp.n = icmp eq i64 %wide.trip.count, %n.vec, !dbg !13 |
| br i1 %cmp.n, label %for.cond.cleanup.loopexit, label %scalar.ph, !dbg !13 |
| |
| scalar.ph: ; preds = %middle.block, %for.body.lr.ph |
| %bc.resume.val = phi i64 [ %n.vec, %middle.block ], [ 0, %for.body.lr.ph ] |
| %bc.merge.rdx = phi i32 [ 0, %for.body.lr.ph ], [ %20, %middle.block ] |
| br label %for.body, !dbg !13 |
| |
| for.cond.cleanup.loopexit: ; preds = %middle.block, %for.body |
| %add.lcssa = phi i32 [ %add, %for.body ], [ %20, %middle.block ], !dbg !19 |
| br label %for.cond.cleanup, !dbg !25 |
| |
| for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry |
| %Ret.0.lcssa = phi i32 [ 0, %entry ], [ %add.lcssa, %for.cond.cleanup.loopexit ], !dbg !14 |
| ret i32 %Ret.0.lcssa, !dbg !25 |
| |
| for.body: ; preds = %for.body, %scalar.ph |
| %indvars.iv = phi i64 [ %bc.resume.val, %scalar.ph ], [ %indvars.iv.next, %for.body ] |
| %Ret.08 = phi i32 [ %bc.merge.rdx, %scalar.ph ], [ %add, %for.body ] |
| %arrayidx = getelementptr inbounds i32, i32* %0, i64 %indvars.iv, !dbg !19 |
| %21 = load i32, i32* %arrayidx, align 4, !dbg !19, !tbaa !20 |
| %22 = trunc i64 %indvars.iv to i32, !dbg !19 |
| %mul = mul i32 %21, %22, !dbg !19 |
| %add = add i32 %mul, %Ret.08, !dbg !19 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !13 |
| %exitcond = icmp eq i64 %indvars.iv.next, %wide.trip.count, !dbg !13 |
| br i1 %exitcond, label %for.cond.cleanup.loopexit, label %for.body, !dbg !13, !llvm.loop !26 |
| } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3, !4, !5, !6} |
| !llvm.ident = !{!7} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 9.0.0 (https://github.com/llvm/llvm-project.git b1e28d9b6a16380ccf1456fe0695f639364407a9)", isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2, nameTableKind: None) |
| !1 = !DIFile(filename: "inlined.cpp", directory: "") |
| !2 = !{} |
| !3 = !{i32 2, !"CodeView", i32 1} |
| !4 = !{i32 2, !"Debug Info Version", i32 3} |
| !5 = !{i32 1, !"wchar_size", i32 2} |
| !6 = !{i32 7, !"PIC Level", i32 2} |
| !7 = !{!"clang version 9.0.0 (https://github.com/llvm/llvm-project.git b1e28d9b6a16380ccf1456fe0695f639364407a9)"} |
| !8 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 13, type: !9, scopeLine: 14, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2) |
| !9 = !DISubroutineType(types: !2) |
| !10 = !DILocation(line: 15, scope: !8) |
| !11 = !DILocation(line: 16, scope: !8) |
| !12 = distinct !DISubprogram(name: "bar", scope: !1, file: !1, line: 3, type: !9, scopeLine: 4, flags: DIFlagPrototyped, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2) |
| !13 = !DILocation(line: 6, scope: !12) |
| !14 = !DILocation(line: 0, scope: !12) |
| !15 = !{!16, !16, i64 0} |
| !16 = !{!"any pointer", !17, i64 0} |
| !17 = !{!"omnipotent char", !18, i64 0} |
| !18 = !{!"Simple C++ TBAA"} |
| !19 = !DILocation(line: 8, scope: !12) |
| !20 = !{!21, !21, i64 0} |
| !21 = !{!"int", !17, i64 0} |
| !22 = distinct !{!22, !13, !23, !24} |
| !23 = !DILocation(line: 9, scope: !12) |
| !24 = !{!"llvm.loop.isvectorized", i32 1} |
| !25 = !DILocation(line: 10, scope: !12) |
| !26 = distinct !{!26, !13, !23, !27, !24} |
| !27 = !{!"llvm.loop.unroll.runtime.disable"} |