| ; RUN: opt -S %s -passes=early-cse -earlycse-debug-hash | FileCheck %s |
| |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| |
| @a = global i8 25, align 1, !dbg !0 |
| |
| define signext i16 @b() !dbg !12 { |
| entry: |
| call void @llvm.dbg.value(metadata i16 23680, metadata !17, metadata !DIExpression()), !dbg !18 |
| %0 = load i8, ptr @a, align 1, !dbg !19, !tbaa !20 |
| %conv = sext i8 %0 to i16, !dbg !19 |
| |
| ; CHECK: call void @llvm.dbg.value(metadata i8 %0, metadata !17, metadata !DIExpression(DW_OP_LLVM_convert, 8, DW_ATE_signed, DW_OP_LLVM_convert, 16, DW_ATE_signed, DW_OP_stack_value)), !dbg !18 |
| ; CHECK-NEXT: call i32 (...) @optimize_me_not() |
| |
| call void @llvm.dbg.value(metadata i16 %conv, metadata !17, metadata !DIExpression()), !dbg !18 |
| %call = call i32 (...) @optimize_me_not(), !dbg !23 |
| %1 = load i8, ptr @a, align 1, !dbg !24, !tbaa !20 |
| %conv1 = sext i8 %1 to i16, !dbg !24 |
| ret i16 %conv1, !dbg !25 |
| } |
| |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) |
| declare i32 @optimize_me_not(...) |
| |
| define i32 @main() !dbg !26 { |
| entry: |
| %call = call signext i16 @b(), !dbg !30 |
| ret i32 0, !dbg !31 |
| } |
| |
| declare void @llvm.dbg.value(metadata, metadata, metadata) |
| |
| !llvm.dbg.cu = !{!2} |
| !llvm.module.flags = !{!7, !8, !9, !10} |
| !llvm.ident = !{!11} |
| |
| !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) |
| !1 = distinct !DIGlobalVariable(name: "a", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true) |
| !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 8.0.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: GNU) |
| !3 = !DIFile(filename: "patatino.c", directory: "/Users/davide/llvm-monorepo/llvm-mono/build/bin") |
| !4 = !{} |
| !5 = !{!0} |
| !6 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char) |
| !7 = !{i32 2, !"Dwarf Version", i32 4} |
| !8 = !{i32 2, !"Debug Info Version", i32 3} |
| !9 = !{i32 1, !"wchar_size", i32 4} |
| !10 = !{i32 7, !"PIC Level", i32 2} |
| !11 = !{!"clang version 8.0.0 "} |
| !12 = distinct !DISubprogram(name: "b", scope: !3, file: !3, line: 2, type: !13, scopeLine: 2, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !16) |
| !13 = !DISubroutineType(types: !14) |
| !14 = !{!15} |
| !15 = !DIBasicType(name: "short", size: 16, encoding: DW_ATE_signed) |
| !16 = !{!17} |
| !17 = !DILocalVariable(name: "i", scope: !12, file: !3, line: 3, type: !15) |
| !18 = !DILocation(line: 3, column: 9, scope: !12) |
| !19 = !DILocation(line: 4, column: 7, scope: !12) |
| !20 = !{!21, !21, i64 0} |
| !21 = !{!"omnipotent char", !22, i64 0} |
| !22 = !{!"Simple C/C++ TBAA"} |
| !23 = !DILocation(line: 5, column: 3, scope: !12) |
| !24 = !DILocation(line: 6, column: 10, scope: !12) |
| !25 = !DILocation(line: 6, column: 3, scope: !12) |
| !26 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 8, type: !27, scopeLine: 8, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4) |
| !27 = !DISubroutineType(types: !28) |
| !28 = !{!29} |
| !29 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !30 = !DILocation(line: 8, column: 14, scope: !26) |
| !31 = !DILocation(line: 8, column: 19, scope: !26) |