From: David Blaikie Date: Fri, 24 Sep 2021 23:13:07 +0000 (-0700) Subject: DebugInfo: Use clang's preferred names for integer types X-Git-Tag: upstream/15.0.7~29384 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f6a561c4d6754b13165a49990e8365d819f64c86;p=platform%2Fupstream%2Fllvm.git DebugInfo: Use clang's preferred names for integer types This reverts c7f16ab3e3f27d944db72908c9c1b1b7366f5515 / r109694 - which suggested this was done to improve consistency with the gdb test suite. Possible that at the time GCC did not canonicalize integer types, and so matching types was important for cross-compiler validity, or that it was only a case of over-constrained test cases that printed out/tested the exact names of integer types. In any case neither issue seems to exist today based on my limited testing - both gdb and lldb canonicalize integer types (in a way that happens to match Clang's preferred naming, incidentally) and so never print the original text name produced in the DWARF by GCC or Clang. This canonicalization appears to be in `integer_types_same_name_p` for GDB and in `TypeSystemClang::GetBasicTypeEnumeration` for lldb. (I tested this with one translation unit defining 3 variables - `long`, `long (*)()`, and `int (*)()`, and another translation unit that had main, and a function that took `long (*)()` as a parameter - then compiled them with mismatched compilers (either GCC+Clang, or Clang+(Clang with this patch applied)) and no matter the combination, despite the debug info for one CU naming the type "long int" and the other naming it "long", both debuggers printed out the name as "long" and were able to correctly perform overload resolution and pass the `long int (*)()` variable to the `long (*)()` function parameter) Did find one hiccup, identified by the lldb test suite - that CodeView was relying on these names to map them to builtin types in that format. So added some handling for that in LLVM. (these could be split out into separate patches, but seems small enough to not warrant it - will do that if there ends up needing any reverti/revisiting) Differential Revision: https://reviews.llvm.org/D110455 --- diff --git a/clang/lib/CodeGen/CGDebugInfo.cpp b/clang/lib/CodeGen/CGDebugInfo.cpp index 5b5fbd0..9c98278 100644 --- a/clang/lib/CodeGen/CGDebugInfo.cpp +++ b/clang/lib/CodeGen/CGDebugInfo.cpp @@ -873,23 +873,7 @@ llvm::DIType *CGDebugInfo::CreateType(const BuiltinType *BT) { break; } - switch (BT->getKind()) { - case BuiltinType::Long: - BTName = "long int"; - break; - case BuiltinType::LongLong: - BTName = "long long int"; - break; - case BuiltinType::ULong: - BTName = "long unsigned int"; - break; - case BuiltinType::ULongLong: - BTName = "long long unsigned int"; - break; - default: - BTName = BT->getName(CGM.getLangOpts()); - break; - } + BTName = BT->getName(CGM.getLangOpts()); // Bit size and offset of the type. uint64_t Size = CGM.getContext().getTypeSize(BT); return DBuilder.createBasicType(BTName, Size, Encoding); diff --git a/clang/test/CodeGen/aarch64-debug-sve-vector-types.c b/clang/test/CodeGen/aarch64-debug-sve-vector-types.c index 4325e3f..b2c5b78 100644 --- a/clang/test/CodeGen/aarch64-debug-sve-vector-types.c +++ b/clang/test/CodeGen/aarch64-debug-sve-vector-types.c @@ -46,12 +46,12 @@ void test_locals(void) { // CHECK-DAG: name: "__SVInt64_t",{{.*}}, baseType: ![[CT64:[0-9]+]] // CHECK-DAG: ![[CT64]] = !DICompositeType(tag: DW_TAG_array_type, baseType: ![[ELTTY64:[0-9]+]], flags: DIFlagVector, elements: ![[ELTS1_64]]) - // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long int", size: 64, encoding: DW_ATE_signed) + // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long", size: 64, encoding: DW_ATE_signed) __SVInt64_t s64; // CHECK-DAG: name: "__SVUint64_t",{{.*}}, baseType: ![[CT64:[0-9]+]] // CHECK-DAG: ![[CT64]] = !DICompositeType(tag: DW_TAG_array_type, baseType: ![[ELTTY64:[0-9]+]], flags: DIFlagVector, elements: ![[ELTS1_64]]) - // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long unsigned int", size: 64, encoding: DW_ATE_unsigned) + // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "unsigned long", size: 64, encoding: DW_ATE_unsigned) __SVUint64_t u64; // CHECK: name: "__SVFloat16_t",{{.*}}, baseType: ![[CT16:[0-9]+]] diff --git a/clang/test/CodeGen/aarch64-debug-sve-vectorx2-types.c b/clang/test/CodeGen/aarch64-debug-sve-vectorx2-types.c index 0d874c0b..9884b40 100644 --- a/clang/test/CodeGen/aarch64-debug-sve-vectorx2-types.c +++ b/clang/test/CodeGen/aarch64-debug-sve-vectorx2-types.c @@ -40,14 +40,14 @@ void test_locals(void) { // CHECK-DAG: name: "__clang_svint64x2_t",{{.*}}, baseType: ![[CT64:[0-9]+]] // CHECK-DAG: ![[CT64]] = !DICompositeType(tag: DW_TAG_array_type, baseType: ![[ELTTY64:[0-9]+]], flags: DIFlagVector, elements: ![[ELTS1x2_64:[0-9]+]]) - // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long int", size: 64, encoding: DW_ATE_signed) + // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long", size: 64, encoding: DW_ATE_signed) // CHECK-DAG: ![[ELTS1x2_64]] = !{![[REALELTS1x2_64:[0-9]+]]} // CHECK-DAG: ![[REALELTS1x2_64]] = !DISubrange(lowerBound: 0, upperBound: !DIExpression(DW_OP_constu, 2, DW_OP_bregx, 46, 0, DW_OP_mul, DW_OP_constu, 1, DW_OP_minus)) __clang_svint64x2_t s64; // CHECK-DAG: name: "__clang_svuint64x2_t",{{.*}}, baseType: ![[CT64:[0-9]+]] // CHECK-DAG: ![[CT64]] = !DICompositeType(tag: DW_TAG_array_type, baseType: ![[ELTTY64:[0-9]+]], flags: DIFlagVector, elements: ![[ELTS1x2_64]]) - // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long unsigned int", size: 64, encoding: DW_ATE_unsigned) + // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "unsigned long", size: 64, encoding: DW_ATE_unsigned) __clang_svuint64x2_t u64; // CHECK: name: "__clang_svfloat16x2_t",{{.*}}, baseType: ![[CT16:[0-9]+]] diff --git a/clang/test/CodeGen/aarch64-debug-sve-vectorx3-types.c b/clang/test/CodeGen/aarch64-debug-sve-vectorx3-types.c index c5dde7d..9855f85 100644 --- a/clang/test/CodeGen/aarch64-debug-sve-vectorx3-types.c +++ b/clang/test/CodeGen/aarch64-debug-sve-vectorx3-types.c @@ -40,14 +40,14 @@ void test_locals(void) { // CHECK-DAG: name: "__clang_svint64x3_t",{{.*}}, baseType: ![[CT64:[0-9]+]] // CHECK-DAG: ![[CT64]] = !DICompositeType(tag: DW_TAG_array_type, baseType: ![[ELTTY64:[0-9]+]], flags: DIFlagVector, elements: ![[ELTS1x3_64:[0-9]+]]) - // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long int", size: 64, encoding: DW_ATE_signed) + // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long", size: 64, encoding: DW_ATE_signed) // CHECK-DAG: ![[ELTS1x3_64]] = !{![[REALELTS1x3_64:[0-9]+]]} // CHECK-DAG: ![[REALELTS1x3_64]] = !DISubrange(lowerBound: 0, upperBound: !DIExpression(DW_OP_constu, 3, DW_OP_bregx, 46, 0, DW_OP_mul, DW_OP_constu, 1, DW_OP_minus)) __clang_svint64x3_t s64; // CHECK-DAG: name: "__clang_svuint64x3_t",{{.*}}, baseType: ![[CT64:[0-9]+]] // CHECK-DAG: ![[CT64]] = !DICompositeType(tag: DW_TAG_array_type, baseType: ![[ELTTY64:[0-9]+]], flags: DIFlagVector, elements: ![[ELTS1x3_64]]) - // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long unsigned int", size: 64, encoding: DW_ATE_unsigned) + // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "unsigned long", size: 64, encoding: DW_ATE_unsigned) __clang_svuint64x3_t u64; // CHECK: name: "__clang_svfloat16x3_t",{{.*}}, baseType: ![[CT16:[0-9]+]] diff --git a/clang/test/CodeGen/aarch64-debug-sve-vectorx4-types.c b/clang/test/CodeGen/aarch64-debug-sve-vectorx4-types.c index 90a266c..6f302d3 100644 --- a/clang/test/CodeGen/aarch64-debug-sve-vectorx4-types.c +++ b/clang/test/CodeGen/aarch64-debug-sve-vectorx4-types.c @@ -40,14 +40,14 @@ void test_locals(void) { // CHECK-DAG: name: "__clang_svint64x4_t",{{.*}}, baseType: ![[CT64:[0-9]+]] // CHECK-DAG: ![[CT64]] = !DICompositeType(tag: DW_TAG_array_type, baseType: ![[ELTTY64:[0-9]+]], flags: DIFlagVector, elements: ![[ELTS1x4_64:[0-9]+]]) - // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long int", size: 64, encoding: DW_ATE_signed) + // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long", size: 64, encoding: DW_ATE_signed) // CHECK-DAG: ![[ELTS1x4_64]] = !{![[REALELTS1x4_64:[0-9]+]]} // CHECK-DAG: ![[REALELTS1x4_64]] = !DISubrange(lowerBound: 0, upperBound: !DIExpression(DW_OP_constu, 4, DW_OP_bregx, 46, 0, DW_OP_mul, DW_OP_constu, 1, DW_OP_minus)) __clang_svint64x4_t s64; // CHECK-DAG: name: "__clang_svuint64x4_t",{{.*}}, baseType: ![[CT64:[0-9]+]] // CHECK-DAG: ![[CT64]] = !DICompositeType(tag: DW_TAG_array_type, baseType: ![[ELTTY64:[0-9]+]], flags: DIFlagVector, elements: ![[ELTS1x4_64]]) - // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long unsigned int", size: 64, encoding: DW_ATE_unsigned) + // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "unsigned long", size: 64, encoding: DW_ATE_unsigned) __clang_svuint64x4_t u64; // CHECK: name: "__clang_svfloat16x4_t",{{.*}}, baseType: ![[CT16:[0-9]+]] diff --git a/clang/test/CodeGen/debug-info-enum.cpp b/clang/test/CodeGen/debug-info-enum.cpp index bbe66bb..4d83fdc 100644 --- a/clang/test/CodeGen/debug-info-enum.cpp +++ b/clang/test/CodeGen/debug-info-enum.cpp @@ -77,7 +77,7 @@ enum class E6 : signed long long { // CHECK-SAME: baseType: ![[LONG:[0-9]+]] // CHECK-SAME: DIFlagEnumClass // CHECK-SAME: elements: ![[ELTS6:[0-9]+]] -// CHECK: ![[LONG]] = !DIBasicType(name: "long long int", size: 64, encoding: DW_ATE_signed) +// CHECK: ![[LONG]] = !DIBasicType(name: "long long", size: 64, encoding: DW_ATE_signed) // CHECK: ![[ELTS6]] = !{![[A6:[0-9]+]], ![[B6:[0-9]+]]} // CHECK: ![[A6]] = !DIEnumerator(name: "A6", value: -9223372036854775808) // CHECK: ![[B6]] = !DIEnumerator(name: "B6", value: 9223372036854775807) @@ -87,7 +87,7 @@ enum class E7 : unsigned long long { A7 = 18446744073709551615ULL } x7; // CHECK-SAME: baseType: ![[ULONG:[0-9]+]] // CHECK-SAME: DIFlagEnumClass // CHECK-SAME: elements: ![[ELTS7:[0-9]+]] -// CHECK: ![[ULONG]] = !DIBasicType(name: "long long unsigned int", size: 64, encoding: DW_ATE_unsigned) +// CHECK: ![[ULONG]] = !DIBasicType(name: "unsigned long long", size: 64, encoding: DW_ATE_unsigned) // CHECK: ![[ELTS7]] = !{![[A7:[0-9]+]]} // CHECK: ![[A7]] = !DIEnumerator(name: "A7", value: 18446744073709551615, isUnsigned: true) diff --git a/clang/test/CodeGen/debug-info.c b/clang/test/CodeGen/debug-info.c index f0215cc..0958f4d 100644 --- a/clang/test/CodeGen/debug-info.c +++ b/clang/test/CodeGen/debug-info.c @@ -58,3 +58,8 @@ __uint128_t foo128 () typedef unsigned long long uint64_t; typedef uint64_t uint64x2_t __attribute__((ext_vector_type(2))); uint64x2_t extvectbar[4]; + +// CHECK-DAG: !DIBasicType(name: "long" +// CHECK-DAG: !DIBasicType(name: "unsigned long long" +void integral_types(long x, unsigned long long y) { +} diff --git a/clang/test/CodeGenCXX/debug-info-enum-class.cpp b/clang/test/CodeGenCXX/debug-info-enum-class.cpp index 3664c67..4860894 100644 --- a/clang/test/CodeGenCXX/debug-info-enum-class.cpp +++ b/clang/test/CodeGenCXX/debug-info-enum-class.cpp @@ -25,7 +25,7 @@ D d; // CHECK-NOT: offset: // CHECK-SAME: flags: DIFlagEnumClass // CHECK-SAME: ){{$}} -// CHECK: ![[ULONG]] = !DIBasicType(name: "long unsigned int" +// CHECK: ![[ULONG]] = !DIBasicType(name: "unsigned long" // CHECK: !DICompositeType(tag: DW_TAG_enumeration_type, name: "C" // CHECK-SAME: line: 5 // CHECK-SAME: baseType: ![[ULONG:[0-9]+]] diff --git a/clang/test/CodeGenObjC/objc-fixed-enum.m b/clang/test/CodeGenObjC/objc-fixed-enum.m index 532959a..7555a8d 100644 --- a/clang/test/CodeGenObjC/objc-fixed-enum.m +++ b/clang/test/CodeGenObjC/objc-fixed-enum.m @@ -54,7 +54,7 @@ int main() { // CHECK: ![[ENUMERATOR3]] = !DIDerivedType(tag: DW_TAG_typedef, name: "NSInteger" // CHECK-SAME: line: 6 // CHECK-SAME: baseType: ![[LONGINT:[0-9]+]] -// CHECK: ![[LONGINT]] = !DIBasicType(name: "long int" +// CHECK: ![[LONGINT]] = !DIBasicType(name: "long" // CHECK: ![[ENUMERATOR2:[0-9]+]] = !DICompositeType(tag: DW_TAG_enumeration_type, // CHECK-SAME: line: 22 // CHECK-SAME: baseType: ![[ENUMERATOR3]] diff --git a/lldb/test/Shell/SymbolFile/DWARF/x86/find-basic-variable.cpp b/lldb/test/Shell/SymbolFile/DWARF/x86/find-basic-variable.cpp index fa09dcf..98b4097 100644 --- a/lldb/test/Shell/SymbolFile/DWARF/x86/find-basic-variable.cpp +++ b/lldb/test/Shell/SymbolFile/DWARF/x86/find-basic-variable.cpp @@ -45,9 +45,9 @@ int foo; namespace bar { int context; long foo; -// NAME-DAG: name = "foo", type = {{.*}} (long int), {{.*}} decl = find-basic-variable.cpp:[[@LINE-1]] -// CONTEXT-DAG: name = "foo", type = {{.*}} (long int), {{.*}} decl = find-basic-variable.cpp:[[@LINE-2]] -// REGEX-DAG: name = "foo", type = {{.*}} (long int), {{.*}} decl = find-basic-variable.cpp:[[@LINE-3]] +// NAME-DAG: name = "foo", type = {{.*}} (long), {{.*}} decl = find-basic-variable.cpp:[[@LINE-1]] +// CONTEXT-DAG: name = "foo", type = {{.*}} (long), {{.*}} decl = find-basic-variable.cpp:[[@LINE-2]] +// REGEX-DAG: name = "foo", type = {{.*}} (long), {{.*}} decl = find-basic-variable.cpp:[[@LINE-3]] namespace baz { static short foo; // NAME-DAG: name = "foo", type = {{.*}} (short), {{.*}} decl = find-basic-variable.cpp:[[@LINE-1]] diff --git a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp index 827863c..8d828f9 100644 --- a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp +++ b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp @@ -1729,9 +1729,14 @@ TypeIndex CodeViewDebug::lowerTypeBasic(const DIBasicType *Ty) { } // Apply some fixups based on the source-level type name. - if (STK == SimpleTypeKind::Int32 && Ty->getName() == "long int") + // Include some amount of canonicalization from an old naming scheme Clang + // used to use for integer types (in an outdated effort to be compatible with + // GCC's debug info/GDB's behavior, which has since been addressed). + if (STK == SimpleTypeKind::Int32 && + (Ty->getName() == "long int" || Ty->getName() == "long")) STK = SimpleTypeKind::Int32Long; - if (STK == SimpleTypeKind::UInt32 && Ty->getName() == "long unsigned int") + if (STK == SimpleTypeKind::UInt32 && (Ty->getName() == "long unsigned int" || + Ty->getName() == "unsigned long")) STK = SimpleTypeKind::UInt32Long; if (STK == SimpleTypeKind::UInt16Short && (Ty->getName() == "wchar_t" || Ty->getName() == "__wchar_t")) diff --git a/llvm/test/CodeGen/MIR/X86/diexpr-win32.mir b/llvm/test/CodeGen/MIR/X86/diexpr-win32.mir index c937c50..d0aab67 100644 --- a/llvm/test/CodeGen/MIR/X86/diexpr-win32.mir +++ b/llvm/test/CodeGen/MIR/X86/diexpr-win32.mir @@ -128,7 +128,7 @@ !15 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "string", file: !1, line: 1, size: 96, elements: !16, identifier: ".?AUstring@@") !16 = !{!17, !19, !20} !17 = !DIDerivedType(tag: DW_TAG_member, name: "length", scope: !15, file: !1, line: 2, baseType: !18, size: 32) - !18 = !DIBasicType(name: "long int", size: 32, encoding: DW_ATE_signed) + !18 = !DIBasicType(name: "long", size: 32, encoding: DW_ATE_signed) !19 = !DIDerivedType(tag: DW_TAG_member, name: "size", scope: !15, file: !1, line: 3, baseType: !18, size: 32, offset: 32) !20 = !DIDerivedType(tag: DW_TAG_member, name: "data", scope: !15, file: !1, line: 4, baseType: !21, size: 32, offset: 64) !21 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !22, size: 32) diff --git a/llvm/test/DebugInfo/COFF/types-basic.ll b/llvm/test/DebugInfo/COFF/types-basic.ll index 81e0c25..65a1b02 100644 --- a/llvm/test/DebugInfo/COFF/types-basic.ll +++ b/llvm/test/DebugInfo/COFF/types-basic.ll @@ -675,12 +675,12 @@ attributes #3 = { nounwind uwtable "disable-tail-calls"="false" "less-precise-fp !46 = !DIDerivedType(tag: DW_TAG_ptr_to_member_type, baseType: !41, size: 64, extraData: !37) !47 = !DILocation(line: 12, column: 13, scope: !7) !48 = !DILocalVariable(name: "l1", scope: !7, file: !1, line: 13, type: !49) -!49 = !DIBasicType(name: "long int", size: 32, align: 32, encoding: DW_ATE_signed) +!49 = !DIBasicType(name: "long", size: 32, align: 32, encoding: DW_ATE_signed) !50 = !DILocation(line: 13, column: 8, scope: !7) !51 = !DILocalVariable(name: "l2", scope: !7, file: !1, line: 14, type: !49) !52 = !DILocation(line: 14, column: 12, scope: !7) !53 = !DILocalVariable(name: "l3", scope: !7, file: !1, line: 15, type: !54) -!54 = !DIBasicType(name: "long unsigned int", size: 32, align: 32, encoding: DW_ATE_unsigned) +!54 = !DIBasicType(name: "unsigned long", size: 32, align: 32, encoding: DW_ATE_unsigned) !55 = !DILocation(line: 15, column: 17, scope: !7) !56 = !DILocalVariable(name: "l4", scope: !7, file: !1, line: 16, type: !54) !57 = !DILocation(line: 16, column: 21, scope: !7) diff --git a/llvm/test/DebugInfo/COFF/types-integer-old.ll b/llvm/test/DebugInfo/COFF/types-integer-old.ll new file mode 100644 index 0000000..ce0cce9 --- /dev/null +++ b/llvm/test/DebugInfo/COFF/types-integer-old.ll @@ -0,0 +1,77 @@ +; RUN: llc < %s -filetype=obj | llvm-readobj - --codeview | FileCheck %s + +; Tests that CodeView integer types are generated even when using Clang's old integer type names. + +; C++ source to regenerate: +; $ cat t.cpp +; void usevars(long, ...); +; void f() { +; long l1 = 0; +; unsigned long l2 = 0; +; usevars(l1, l2); +; } +; $ clang t.cpp -S -emit-llvm -g -gcodeview -o t.ll -target x86_64-pc-windows-msvc19.0.23918 + +; CHECK: LocalSym { +; CHECK: Type: long (0x12) +; CHECK: VarName: l1 +; CHECK: } +; CHECK: LocalSym { +; CHECK: Type: unsigned long (0x22) +; CHECK: VarName: l2 +; CHECK: } + +; ModuleID = '/usr/local/google/home/blaikie/dev/scratch/t.cpp' +source_filename = "/usr/local/google/home/blaikie/dev/scratch/t.cpp" +target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-pc-windows-msvc19.0.23918" + +; Function Attrs: mustprogress noinline optnone uwtable +define dso_local void @"?f@@YAXXZ"() #0 !dbg !8 { +entry: + %l1 = alloca i32, align 4 + %l2 = alloca i32, align 4 + call void @llvm.dbg.declare(metadata i32* %l1, metadata !13, metadata !DIExpression()), !dbg !15 + store i32 0, i32* %l1, align 4, !dbg !15 + call void @llvm.dbg.declare(metadata i32* %l2, metadata !16, metadata !DIExpression()), !dbg !18 + store i32 0, i32* %l2, align 4, !dbg !18 + %0 = load i32, i32* %l2, align 4, !dbg !19 + %1 = load i32, i32* %l1, align 4, !dbg !19 + call void (i32, ...) @"?usevars@@YAXJZZ"(i32 %1, i32 %0), !dbg !19 + ret void, !dbg !20 +} + +; Function Attrs: nofree nosync nounwind readnone speculatable willreturn +declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 + +declare dso_local void @"?usevars@@YAXJZZ"(i32, ...) #2 + +attributes #0 = { mustprogress noinline optnone uwtable "frame-pointer"="none" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" } +attributes #1 = { nofree nosync nounwind readnone speculatable willreturn } +attributes #2 = { "frame-pointer"="none" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" } + +!llvm.dbg.cu = !{!0} +!llvm.module.flags = !{!2, !3, !4, !5, !6} +!llvm.ident = !{!7} + +!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 14.0.0 (git@github.com:llvm/llvm-project.git 3709fb72c86bea1f0e6c51ab334ed6417cbe1c07)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None) +!1 = !DIFile(filename: "/usr/local/google/home/blaikie/dev/scratch/t.cpp", directory: "/usr/local/google/home/blaikie/dev/llvm/src", checksumkind: CSK_MD5, checksum: "a8e7ccc989ea91d67d3cb95afa046aa5") +!2 = !{i32 2, !"CodeView", i32 1} +!3 = !{i32 2, !"Debug Info Version", i32 3} +!4 = !{i32 1, !"wchar_size", i32 2} +!5 = !{i32 7, !"PIC Level", i32 2} +!6 = !{i32 7, !"uwtable", i32 1} +!7 = !{!"clang version 14.0.0 (git@github.com:llvm/llvm-project.git 3709fb72c86bea1f0e6c51ab334ed6417cbe1c07)"} +!8 = distinct !DISubprogram(name: "f", linkageName: "?f@@YAXXZ", scope: !9, file: !9, line: 2, type: !10, scopeLine: 2, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !12) +!9 = !DIFile(filename: "scratch/t.cpp", directory: "/usr/local/google/home/blaikie/dev", checksumkind: CSK_MD5, checksum: "a8e7ccc989ea91d67d3cb95afa046aa5") +!10 = !DISubroutineType(types: !11) +!11 = !{null} +!12 = !{} +!13 = !DILocalVariable(name: "l1", scope: !8, file: !9, line: 3, type: !14) +!14 = !DIBasicType(name: "long int", size: 32, encoding: DW_ATE_signed) +!15 = !DILocation(line: 3, scope: !8) +!16 = !DILocalVariable(name: "l2", scope: !8, file: !9, line: 4, type: !17) +!17 = !DIBasicType(name: "long unsigned int", size: 32, encoding: DW_ATE_unsigned) +!18 = !DILocation(line: 4, scope: !8) +!19 = !DILocation(line: 5, scope: !8) +!20 = !DILocation(line: 6, scope: !8)