| ; RUN: llc < %s | FileCheck %s |
| |
| ; Input C code: |
| |
| ; int i = input(); // Nested case |
| ; int j = input(); // Trivial def-use. |
| ; output(i, j); |
| |
| ; The ll below generates 330 lines of .S, so relevant parts that the |
| ; WebAssemblyDebugFixup pass affects: |
| |
| ; CHECK: call input |
| ; CHECK: .Ltmp0: |
| ; CHECK: call input |
| ; CHECK: .Ltmp1: |
| ; CHECK: call output |
| ; CHECK: .Ltmp2: |
| |
| ; This defines variable "i" which is live on the stack between Ltmp0 and Ltmp2, |
| ; 2 = TI_OPERAND_STACK and 0 = stack offset. |
| |
| ; CHECK: .section .debug_loc,"",@ |
| ; CHECK: .Ldebug_loc0: |
| ; CHECK: .int32 .Ltmp0-.Lfunc_begin0 |
| ; CHECK: .int32 .Ltmp2-.Lfunc_begin0 |
| ; CHECK: .int16 4 # Loc expr size |
| ; CHECK: .int8 237 # DW_OP_WASM_location |
| ; CHECK: .int8 2 # 2 |
| ; CHECK: .int8 0 # 0 |
| ; CHECK: .int8 159 # DW_OP_stack_value |
| |
| ; This defines variable "j" which is live on the stack between Ltmp1 and Ltmp2, |
| ; 2 = TI_OPERAND_STACK and 1 = stack offset. |
| |
| ; CHECK: .Ldebug_loc1: |
| ; CHECK: .int32 .Ltmp1-.Lfunc_begin0 |
| ; CHECK: .int32 .Ltmp2-.Lfunc_begin0 |
| ; CHECK: .int16 4 # Loc expr size |
| ; CHECK: .int8 237 # DW_OP_WASM_location |
| ; CHECK: .int8 2 # 2 |
| ; CHECK: .int8 1 # 1 |
| ; CHECK: .int8 159 # DW_OP_stack_value |
| |
| |
| |
| |
| source_filename = "stackified.c" |
| target triple = "wasm32-unknown-unknown" |
| |
| define void @foo() !dbg !12 { |
| entry: |
| %call = call i32 @input(), !dbg !18 |
| call void @llvm.dbg.value(metadata i32 %call, metadata !16, metadata !DIExpression()), !dbg !19 |
| %call1 = call i32 @input(), !dbg !20 |
| call void @llvm.dbg.value(metadata i32 %call1, metadata !17, metadata !DIExpression()), !dbg !19 |
| call void @output(i32 %call, i32 %call1), !dbg !21 |
| ret void, !dbg !22 |
| } |
| |
| declare i32 @input() |
| |
| declare !dbg !4 void @output(i32, i32) |
| |
| declare void @llvm.dbg.value(metadata, metadata, metadata) |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!8, !9, !10} |
| !llvm.ident = !{!11} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 11.0.0 (https://github.com/llvm/llvm-project.git ed7aaf832444411ce93aa0443425ce401f5c7a8e)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None) |
| !1 = !DIFile(filename: "stackified.c", directory: "C:\\stuff\\llvm-project") |
| !2 = !{} |
| !3 = !{!4} |
| !4 = !DISubprogram(name: "output", scope: !1, file: !1, line: 2, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2) |
| !5 = !DISubroutineType(types: !6) |
| !6 = !{null, !7, !7} |
| !7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !8 = !{i32 7, !"Dwarf Version", i32 4} |
| !9 = !{i32 2, !"Debug Info Version", i32 3} |
| !10 = !{i32 1, !"wchar_size", i32 4} |
| !11 = !{!"clang version 11.0.0 (https://github.com/llvm/llvm-project.git ed7aaf832444411ce93aa0443425ce401f5c7a8e)"} |
| !12 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 3, type: !13, scopeLine: 3, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !15) |
| !13 = !DISubroutineType(types: !14) |
| !14 = !{null} |
| !15 = !{!16, !17} |
| !16 = !DILocalVariable(name: "i", scope: !12, file: !1, line: 4, type: !7) |
| !17 = !DILocalVariable(name: "j", scope: !12, file: !1, line: 5, type: !7) |
| !18 = !DILocation(line: 4, column: 11, scope: !12) |
| !19 = !DILocation(line: 0, scope: !12) |
| !20 = !DILocation(line: 5, column: 11, scope: !12) |
| !21 = !DILocation(line: 6, column: 3, scope: !12) |
| !22 = !DILocation(line: 7, column: 1, scope: !12) |