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1; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=fiji < %s | FileCheck %s2 3; Make sure we do not crash during scheduling when DBG_VALUE is the first4; instruction in the basic block.5 6; LLVM IR generated with the following command and OpenCL source:7;8; $clang -cl-std=CL2.0 -g -O2 -target amdgcn-amd-amdhsa -S -emit-llvm <path-to-file>9;10; kernel void kernel1(global int *A, global int *B) {11; if (*A == 1) {12; *B = 12;13; }14; if (*A == 2) {15; *B = 13;16; }17; }18 19declare void @llvm.dbg.value(metadata, metadata, metadata)20 21; CHECK-LABEL: {{^}}kernel1:22define amdgpu_kernel void @kernel1(23 ptr addrspace(1) nocapture readonly %A,24 ptr addrspace(1) nocapture %B) !dbg !7 {25entry:26 tail call void @llvm.dbg.value(metadata ptr addrspace(1) %A, metadata !13, metadata !19), !dbg !2027 tail call void @llvm.dbg.value(metadata ptr addrspace(1) %B, metadata !14, metadata !19), !dbg !2128 %0 = load i32, ptr addrspace(1) %A, align 4, !dbg !22, !tbaa !2429 %cmp = icmp eq i32 %0, 1, !dbg !2830 br i1 %cmp, label %if.then, label %if.end, !dbg !2931 32if.then: ; preds = %entry33 store i32 12, ptr addrspace(1) %B, align 4, !dbg !30, !tbaa !2434 %.pr = load i32, ptr addrspace(1) %A, align 4, !dbg !32, !tbaa !2435 br label %if.end, !dbg !3436 37if.end: ; preds = %if.then, %entry38 %1 = phi i32 [ %.pr, %if.then ], [ %0, %entry ], !dbg !3239 %cmp1 = icmp eq i32 %1, 2, !dbg !3540 br i1 %cmp1, label %if.then2, label %if.end3, !dbg !3641 42if.then2: ; preds = %if.end43 store i32 13, ptr addrspace(1) %B, align 4, !dbg !37, !tbaa !2444 br label %if.end3, !dbg !3945 46if.end3: ; preds = %if.then2, %if.end47 ret void, !dbg !4048}49 50!llvm.dbg.cu = !{!0}51!opencl.ocl.version = !{!3}52!llvm.module.flags = !{!4, !5}53!llvm.ident = !{!6}54 55!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 4.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)56!1 = !DIFile(filename: "dbg-value-sched-crash.cl", directory: "/some/random/directory")57!2 = !{}58!3 = !{i32 2, i32 0}59!4 = !{i32 2, !"Dwarf Version", i32 2}60!5 = !{i32 2, !"Debug Info Version", i32 3}61!6 = !{!"clang version 4.0 "}62!7 = distinct !DISubprogram(name: "kernel1", scope: !1, file: !1, line: 1, type: !8, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !12)63!8 = !DISubroutineType(types: !9)64!9 = !{null, !10, !10}65!10 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !11, size: 64)66!11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)67!12 = !{!13, !14}68!13 = !DILocalVariable(name: "A", arg: 1, scope: !7, file: !1, line: 1, type: !10)69!14 = !DILocalVariable(name: "B", arg: 2, scope: !7, file: !1, line: 1, type: !10)70!15 = !{i32 1, i32 1}71!16 = !{!"none", !"none"}72!17 = !{!"int*", !"int*"}73!18 = !{!"", !""}74!19 = !DIExpression(DW_OP_constu, 1, DW_OP_swap, DW_OP_xderef)75!20 = !DILocation(line: 1, column: 33, scope: !7)76!21 = !DILocation(line: 1, column: 48, scope: !7)77!22 = !DILocation(line: 2, column: 7, scope: !23)78!23 = distinct !DILexicalBlock(scope: !7, file: !1, line: 2, column: 7)79!24 = !{!25, !25, i64 0}80!25 = !{!"int", !26, i64 0}81!26 = !{!"omnipotent char", !27, i64 0}82!27 = !{!"Simple C/C++ TBAA"}83!28 = !DILocation(line: 2, column: 10, scope: !23)84!29 = !DILocation(line: 2, column: 7, scope: !7)85!30 = !DILocation(line: 3, column: 8, scope: !31)86!31 = distinct !DILexicalBlock(scope: !23, file: !1, line: 2, column: 16)87!32 = !DILocation(line: 5, column: 7, scope: !33)88!33 = distinct !DILexicalBlock(scope: !7, file: !1, line: 5, column: 7)89!34 = !DILocation(line: 4, column: 3, scope: !31)90!35 = !DILocation(line: 5, column: 10, scope: !33)91!36 = !DILocation(line: 5, column: 7, scope: !7)92!37 = !DILocation(line: 6, column: 8, scope: !38)93!38 = distinct !DILexicalBlock(scope: !33, file: !1, line: 5, column: 16)94!39 = !DILocation(line: 7, column: 3, scope: !38)95!40 = !DILocation(line: 8, column: 1, scope: !7)96