; RUN: opt -S -passes=jump-threading < %s | FileCheck %s ; RUN: opt -S -passes=jump-threading < %s --try-experimental-debuginfo-iterators | FileCheck %s @a = global i32 0, align 4 ; Test that the llvm.dbg.value calls in a threaded block are correctly updated to ; target the locals in their threaded block, and not the unthreaded one. define void @test1(i32 %cond1, i32 %cond2) { ; CHECK: [[globalptr:@.*]] = global i32 0, align 4 ; CHECK: bb.cond2: ; CHECK: call void @llvm.dbg.value(metadata ptr null, metadata ![[DBG1ptr:[0-9]+]], metadata !DIExpression()), !dbg ![[DBG2ptr:[0-9]+]] ; CHECK-NEXT: [[TOBOOL1:%.*]] = icmp eq i32 %cond2, 0, !dbg ![[DBGLOCtobool1:[0-9]+]] ; CHECK-NEXT: call void @llvm.dbg.value(metadata !DIArgList(ptr null, i1 [[TOBOOL1]], i1 [[TOBOOL1]]), metadata !{{[0-9]+}}, metadata !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_LLVM_arg, 2, DW_OP_plus)), !dbg !{{[0-9]+}} ; CHECK: bb.cond2.thread: ; CHECK-NEXT: call void @llvm.dbg.value(metadata ptr [[globalptr]], metadata ![[DBG1ptr]], metadata !DIExpression()), !dbg ![[DBG2ptr]] ; CHECK-NEXT: [[TOBOOL12:%.*]] = icmp eq i32 %cond2, 0, !dbg ![[DBGLOCtobool1]] ; CHECK-NEXT: call void @llvm.dbg.value(metadata !DIArgList(ptr [[globalptr]], i1 [[TOBOOL12]], i1 [[TOBOOL12]]), metadata !{{[0-9]+}}, metadata !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_LLVM_arg, 2, DW_OP_plus)), !dbg !{{[0-9]+}} entry: %tobool = icmp eq i32 %cond1, 0, !dbg !15 call void @llvm.dbg.value(metadata i1 %tobool, metadata !9, metadata !DIExpression()), !dbg !15 br i1 %tobool, label %bb.cond2, label %bb.f1, !dbg !16 bb.f1: ; preds = %entry call void @f1(), !dbg !17 br label %bb.cond2, !dbg !18 bb.cond2: ; preds = %bb.f1, %entry %ptr = phi ptr [ null, %bb.f1 ], [ @a, %entry ], !dbg !19 call void @llvm.dbg.value(metadata ptr %ptr, metadata !11, metadata !DIExpression()), !dbg !19 %tobool1 = icmp eq i32 %cond2, 0, !dbg !20 call void @llvm.dbg.value(metadata !DIArgList(ptr %ptr, i1 %tobool1, i1 %tobool1), metadata !13, metadata !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_LLVM_arg, 2, DW_OP_plus)), !dbg !20 br i1 %tobool1, label %bb.file, label %bb.f2, !dbg !21 bb.f2: ; preds = %bb.cond2 call void @f2(), !dbg !22 br label %exit, !dbg !23 bb.file: ; preds = %bb.cond2 %cmp = icmp eq ptr %ptr, null, !dbg !24 call void @llvm.dbg.value(metadata i1 %cmp, metadata !14, metadata !DIExpression()), !dbg !24 br i1 %cmp, label %bb.f4, label %bb.f3, !dbg !25 bb.f3: ; preds = %bb.file br label %exit, !dbg !26 bb.f4: ; preds = %bb.file call void @f4(), !dbg !27 br label %exit, !dbg !28 exit: ; preds = %bb.f4, %bb.f3, %bb.f2 ret void, !dbg !29 } ; This is testing for debug value instrinsics outside of the threaded block pointing to a value ; inside to correctly take any new definitions. define void @test2(i32 %cond1, i32 %cond2) !dbg !5 { ; CHECK: bb.f3 ; CHECK: call void @llvm.dbg.value(metadata ptr @a, metadata !{{[0-9]+}}, metadata !DIExpression()), !dbg !{{[0-9]+}} ; CHECK: bb.f4 ; CHECK-NEXT: [[PTR3:%.*]] = phi ptr [ null, %bb.cond2 ] ; CHECK-NEXT: call void @llvm.dbg.value(metadata ptr [[PTR3]], metadata !{{[0-9]+}}, metadata !DIExpression()), !dbg !{{[0-9]+}} entry: %tobool = icmp eq i32 %cond1, 0, !dbg !15 br i1 %tobool, label %bb.cond2, label %bb.f1, !dbg !16 bb.f1: ; preds = %entry call void @f1(), !dbg !17 br label %bb.cond2, !dbg !18 bb.cond2: ; preds = %bb.f1, %entry %ptr = phi ptr [ null, %bb.f1 ], [ @a, %entry ], !dbg !19 %tobool1 = icmp eq i32 %cond2, 0, !dbg !20 br i1 %tobool1, label %bb.file, label %bb.f2, !dbg !21 bb.f2: ; preds = %bb.cond2 call void @f2(), !dbg !22 br label %exit, !dbg !23 bb.file: ; preds = %bb.cond2 %cmp = icmp eq ptr %ptr, null, !dbg !24 call void @llvm.dbg.value(metadata ptr %ptr, metadata !14, metadata !DIExpression()), !dbg !21 br i1 %cmp, label %bb.f4, label %bb.f3, !dbg !25 bb.f3: ; preds = %bb.file call void @f3(), !dbg !26 br label %exit, !dbg !27 bb.f4: ; preds = %bb.file call void @f4(), !dbg !28 br label %exit, !dbg !29 exit: ; preds = %bb.f4, %bb.f3, %bb.f2 ret void, !dbg !29 } ; Test for the cloning of dbg.values on elided instructions -- down one path ; being threaded, the `and` in the function below is optimised away, but its ; debug-info should still be preserved. ; Similarly, the call to f1 gets cloned, its dbg.value should be cloned too. define void @test16(i1 %c, i1 %c2, i1 %c3, i1 %c4) nounwind ssp !dbg !30 { ; CHECK-LABEL: define void @test16(i1 entry: %cmp = icmp sgt i32 undef, 1, !dbg !33 br i1 %c, label %land.end, label %land.rhs, !dbg !33 land.rhs: br i1 %c2, label %lor.lhs.false.i, label %land.end, !dbg !33 lor.lhs.false.i: br i1 %c3, label %land.end, label %land.end, !dbg !33 ; CHECK-LABEL: land.end.thr_comm: ; CHECK-NEXT: call void @llvm.dbg.value(metadata i32 0, ; CHECK-NEXT: call void @llvm.dbg.value(metadata i32 1, ; CHECK-NEXT: call void @f1() ; CHECK-NEXT: br i1 %c4, ; CHECK-LABEL: land.end: ; CHECK-NEXT: %0 = phi i1 ; CHECK-NEXT: call void @llvm.dbg.value(metadata i32 0, land.end: %0 = phi i1 [ true, %entry ], [ false, %land.rhs ], [false, %lor.lhs.false.i], [false, %lor.lhs.false.i] call void @llvm.dbg.value(metadata i32 0, metadata !32, metadata !DIExpression()), !dbg !33 %cmp12 = and i1 %cmp, %0, !dbg !33 %xor1 = xor i1 %cmp12, %c4, !dbg !33 call void @llvm.dbg.value(metadata i32 1, metadata !32, metadata !DIExpression()), !dbg !33 call void @f1() br i1 %xor1, label %if.then, label %if.end, !dbg !33 if.then: ret void, !dbg !33 if.end: ret void, !dbg !33 } declare void @f1() declare void @f2() declare void @f3() declare void @f4() ; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none) declare void @llvm.dbg.value(metadata, metadata, metadata) #0 attributes #0 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) } !llvm.dbg.cu = !{!0} !llvm.debugify = !{!2, !3} !llvm.module.flags = !{!4} !0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug) !1 = !DIFile(filename: "/home/ben/Documents/llvm-project/llvm/test/Transforms/JumpThreading/thread-debug-info.ll", directory: "/") !2 = !{i32 15} !3 = !{i32 4} !4 = !{i32 2, !"Debug Info Version", i32 3} !5 = distinct !DISubprogram(name: "test2", linkageName: "test2", scope: null, file: !1, line: 1, type: !6, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !8) !6 = !DISubroutineType(types: !7) !7 = !{} !8 = !{!9, !11, !13, !14} !9 = !DILocalVariable(name: "1", scope: !5, file: !1, line: 1, type: !10) !10 = !DIBasicType(name: "ty8", size: 8, encoding: DW_ATE_unsigned) !11 = !DILocalVariable(name: "2", scope: !5, file: !1, line: 5, type: !12) !12 = !DIBasicType(name: "ty64", size: 64, encoding: DW_ATE_unsigned) !13 = !DILocalVariable(name: "3", scope: !5, file: !1, line: 6, type: !10) !14 = !DILocalVariable(name: "4", scope: !5, file: !1, line: 10, type: !10) !15 = !DILocation(line: 1, column: 1, scope: !5) !16 = !DILocation(line: 2, column: 1, scope: !5) !17 = !DILocation(line: 3, column: 1, scope: !5) !18 = !DILocation(line: 4, column: 1, scope: !5) !19 = !DILocation(line: 5, column: 1, scope: !5) !20 = !DILocation(line: 6, column: 1, scope: !5) !21 = !DILocation(line: 7, column: 1, scope: !5) !22 = !DILocation(line: 8, column: 1, scope: !5) !23 = !DILocation(line: 9, column: 1, scope: !5) !24 = !DILocation(line: 10, column: 1, scope: !5) !25 = !DILocation(line: 11, column: 1, scope: !5) !26 = !DILocation(line: 12, column: 1, scope: !5) !27 = !DILocation(line: 13, column: 1, scope: !5) !28 = !DILocation(line: 14, column: 1, scope: !5) !29 = !DILocation(line: 15, column: 1, scope: !5) !30 = distinct !DISubprogram(name: "test13", linkageName: "test13", scope: null, file: !1, line: 1, type: !6, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !31) !31 = !{!32} !32 = !DILocalVariable(name: "1", scope: !30, file: !1, line: 1, type: !10) !33 = !DILocation(line: 1, column: 1, scope: !30)