1; RUN: llc %s -stop-after wasm-cfg-stackify -o - | FileCheck %s 2 3; The test ensures "block" instruction is not inserted in the middle of a group 4; of instructions that form a stackified expression when DBG_VALUE is present 5; among them. 6 7; CHECK: body: 8; CHECK: BLOCK 9; <-- Stackified expression starts 10; CHECK-NEXT: I32_WRAP_I64 11; CHECK-NEXT: DBG_VALUE 12; <-- BLOCK should NOT be placed here! 13; CHECK-NEXT: BR_UNLESS 14; <-- Stackified expression ends 15 16target triple = "wasm32-unknown-unknown" 17 18define void @foo(i64 %arg) { 19start: 20 %val = trunc i64 %arg to i32 21 %cmp = icmp eq i32 %val, 0 22 call void @llvm.dbg.value(metadata i32 %val, metadata !46, metadata !DIExpression()), !dbg !105 23 br i1 %cmp, label %bb2, label %bb1 24bb1: ; preds = %start 25 call void @bar() 26 br label %bb2 27bb2: ; preds = %bb1, start 28 ret void 29} 30 31declare void @bar() 32declare void @llvm.dbg.value(metadata, metadata, metadata) 33 34!llvm.dbg.cu = !{!0} 35!llvm.module.flags = !{!33} 36!0 = distinct !DICompileUnit(language: DW_LANG_Rust, file: !6, producer: "clang LLVM (rustc version 1.30.0-dev)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !2) 37!2 = !{} 38!6 = !DIFile(filename: "<unknown>", directory: "") 39!22 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "&str", file: !6, size: 64, align: 32, elements: !{}, identifier: "111094d970b097647de579f9c509ef08") 40!33 = !{i32 2, !"Debug Info Version", i32 3} 41!35 = distinct !DILexicalBlock(scope: !37, file: !6, line: 357, column: 8) 42!37 = distinct !DISubprogram(name: "foobar", linkageName: "_fooba", scope: !38, file: !6, line: 353, type: !39, isLocal: true, isDefinition: true, scopeLine: 353, flags: DIFlagPrototyped, isOptimized: true, unit: !0, templateParams: !2, retainedNodes: !42) 43!38 = !DINamespace(name: "ptr", scope: null) 44!39 = !DISubroutineType(types: !2) 45!42 = !{!46} 46!46 = !DILocalVariable(name: "z", scope: !35, file: !6, line: 357, type: !22, align: 4) 47!105 = !DILocation(line: 357, column: 12, scope: !35) 48