| ; RUN: llc %s -stop-after wasm-cfg-stackify -o - | FileCheck %s |
| |
| ; The test ensures "block" instruction is not inserted in the middle of a group |
| ; of instructions that form a stackified expression when DBG_VALUE is present |
| ; among them. |
| |
| ; CHECK: body: |
| ; CHECK: BLOCK |
| ; <-- Stackified expression starts |
| ; CHECK-NEXT: I32_WRAP_I64 |
| ; CHECK-NEXT: DBG_VALUE |
| ; <-- BLOCK should NOT be placed here! |
| ; CHECK-NEXT: BR_UNLESS |
| ; <-- Stackified expression ends |
| |
| target triple = "wasm32-unknown-unknown" |
| |
| define void @foo(i64 %arg) { |
| start: |
| %val = trunc i64 %arg to i32 |
| %cmp = icmp eq i32 %val, 0 |
| call void @llvm.dbg.value(metadata i32 %val, metadata !46, metadata !DIExpression()), !dbg !105 |
| br i1 %cmp, label %bb2, label %bb1 |
| bb1: ; preds = %start |
| call void @bar() |
| br label %bb2 |
| bb2: ; preds = %bb1, start |
| ret void |
| } |
| |
| declare void @bar() |
| declare void @llvm.dbg.value(metadata, metadata, metadata) |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!33} |
| !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) |
| !2 = !{} |
| !6 = !DIFile(filename: "<unknown>", directory: "") |
| !22 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "&str", file: !6, size: 64, align: 32, elements: !{}, identifier: "111094d970b097647de579f9c509ef08") |
| !33 = !{i32 2, !"Debug Info Version", i32 3} |
| !35 = distinct !DILexicalBlock(scope: !37, file: !6, line: 357, column: 8) |
| !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) |
| !38 = !DINamespace(name: "ptr", scope: null) |
| !39 = !DISubroutineType(types: !2) |
| !42 = !{!46} |
| !46 = !DILocalVariable(name: "z", scope: !35, file: !6, line: 357, type: !22, align: 4) |
| !105 = !DILocation(line: 357, column: 12, scope: !35) |
