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4174e2136f
Before this patch every Swift function would contain a top-level DW_TAG_lexical_scope that didn't provide any useful information, used extra space in the debug info and prevented local variables from showing up in virtual async backtraces.
92 lines
4.8 KiB
Swift
92 lines
4.8 KiB
Swift
// A (no longer) basic test for debug info.
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// --------------------------------------------------------------------
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// Verify that we don't emit any debug info by default.
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// RUN: %target-swift-frontend %s -emit-ir -o - \
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// RUN: | %FileCheck %s --check-prefix NDEBUG
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// NDEBUG: source_filename
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// NDEBUG-NOT: !dbg
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// NDEBUG-NOT: DICompileUnit
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// --------------------------------------------------------------------
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// Verify that we don't emit any debug info with -gnone.
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// RUN: %target-swift-frontend %s -emit-ir -gnone -o - \
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// RUN: | %FileCheck %s --check-prefix NDEBUG
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// --------------------------------------------------------------------
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// Verify that we don't emit any type info with -gline-tables-only.
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// RUN: %target-swift-frontend %s -emit-ir -gline-tables-only -o - \
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// RUN: | %FileCheck %s --check-prefix CHECK-LINETABLES
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// CHECK: !dbg
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// CHECK-LINETABLES-NOT: DI{{.*}}Variable
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// CHECK-LINETABLES-NOT: DW_TAG_structure_type
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// CHECK-LINETABLES-NOT: DIBasicType
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// --------------------------------------------------------------------
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// Now check that we do generate line+scope info with -g.
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// RUN: %target-swift-frontend %/s -emit-ir -g -o - \
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// RUN: | %FileCheck %s --check-prefixes CHECK,DWARF-CHECK
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// --------------------------------------------------------------------
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// Currently -gdwarf-types should give the same results as -g.
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// RUN: %target-swift-frontend %/s -emit-ir -gdwarf-types -o - \
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// RUN: | %FileCheck %s --check-prefixes CHECK,DWARF-CHECK
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// --------------------------------------------------------------------
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// Verify that -g -debug-info-format=dwarf gives the same results as -g.
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// RUN: %target-swift-frontend %/s -emit-ir -g -debug-info-format=dwarf -o - \
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// RUN: | %FileCheck %s --check-prefixes CHECK,DWARF-CHECK
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// --------------------------------------------------------------------
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// RUN: %target-swift-frontend %/s -emit-ir -g -debug-info-format=codeview -o - \
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// RUN: | %FileCheck %s --check-prefixes CHECK,CV-CHECK
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// --------------------------------------------------------------------
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//
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// CHECK: foo
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// CHECK-DAG: ret{{.*}}, !dbg ![[RET:[0-9]+]]
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// CHECK-DAG: ![[FOO:[0-9]+]] = distinct !DISubprogram(name: "foo",{{.*}} line: [[@LINE+2]],{{.*}} type: ![[FOOTYPE:[0-9]+]]
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public
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func foo(_ a: Int64, _ b: Int64) -> Int64 {
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var a = a
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var b = b
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// CHECK-DAG: ![[ALOC:.*]] = !DILocation(line: [[@LINE-3]],{{.*}} scope: ![[FOO]])
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// Check that a is the first and b is the second argument.
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// CHECK-DAG: store i64 %0, i64* [[AADDR:.*]], align
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// CHECK-DAG: store i64 %1, i64* [[BADDR:.*]], align
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// CHECK-DAG: [[AVAL:%.*]] = getelementptr inbounds {{.*}}, [[AMEM:.*]], i32 0, i32 0
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// CHECK-DAG: [[BVAL:%.*]] = getelementptr inbounds {{.*}}, [[BMEM:.*]], i32 0, i32 0
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// CHECK-DAG: call void @llvm.dbg.declare(metadata i64* [[AADDR]], metadata ![[AARG:.*]], metadata !DIExpression()), !dbg ![[ALOC]]
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// CHECK-DAG: call void @llvm.dbg.declare(metadata i64* [[BADDR]], metadata ![[BARG:.*]], metadata !DIExpression())
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// CHECK-DAG: ![[AARG]] = !DILocalVariable(name: "a", arg: 1
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// CHECK-DAG: ![[BARG]] = !DILocalVariable(name: "b", arg: 2
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if b != 0 {
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// CHECK-DAG: !DILexicalBlock({{.*}} line: [[@LINE-1]]
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// Transparent inlined multiply:
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// CHECK-DAG: smul{{.*}}, !dbg ![[MUL:[0-9]+]]
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// CHECK-DAG: [[MUL]] = !DILocation(line: [[@LINE+1]],
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return a*b
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} else {
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// CHECK-DAG: ![[PARENT:[0-9]+]] = distinct !DILexicalBlock({{.*}} line: [[@LINE-1]]
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var c: Int64 = 42
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// CHECK-DAG: ![[CONDITION:[0-9]+]] = distinct !DILexicalBlock(scope: ![[PARENT]], {{.*}}, line: [[@LINE+1]]
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if a == 0 {
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// CHECK-DAG: !DILexicalBlock(scope: ![[CONDITION]], {{.*}}, line: [[@LINE-1]]
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// What about a nested scope?
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return 0
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}
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return c
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}
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}
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// CHECK-DAG: ![[MAINFILE:[0-9]+]] = !DIFile(filename: "{{.*}}DebugInfo/basic.swift", directory: "{{.*}}")
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// CHECK-DAG: !DICompileUnit(language: DW_LANG_Swift, file: ![[MAINFILE]],{{.*}} producer: "{{.*}}Swift version{{.*}},{{.*}}
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// CHECK-DAG: !DISubprogram(name: "main", {{.*}}file: ![[MAINFILE]],
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// Function type for foo.
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// CHECK-DAG: ![[FOOTYPE]] = !DISubroutineType(types: ![[PARAMTYPES:[0-9]+]])
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// CHECK-DAG: ![[INT64:.*]] = !DICompositeType(tag: DW_TAG_structure_type, name: "Int64", {{.*}}, identifier: "$ss5Int64VD")
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// CHECK-DAG: ![[PARAMTYPES]] = !{![[INT64]], ![[INT64]], ![[INT64]]}
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// Import of the main module with the implicit name.
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// CHECK-DAG: !DIImportedEntity(tag: DW_TAG_imported_module, scope: ![[MAINFILE]], entity: ![[MAINMODULE:[0-9]+]], file: ![[MAINFILE]])
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// CHECK-DAG: ![[MAINMODULE]] = !DIModule({{.*}}, name: "basic"
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// DWARF Version
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// DWARF-CHECK-DAG: i32 7, !"Dwarf Version", i32 4}
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// CV-CHECK-DAG: i32 2, !"CodeView", i32 1}
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// Debug Info Version
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// CHECK-DAG: i32 2, !"Debug Info Version", i32
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