[SPIR-V] Support for multiple DebugCompilationUnit in DI #109645
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@llvm/pr-subscribers-backend-spir-v Author: None (bwlodarcz) ChangesThe module in LLVM can have more then one CompilationUnit when e.g. modules are combined by llvm-linker. Full diff: https://github.com/llvm/llvm-project/pull/109645.diff 2 Files Affected:
diff --git a/llvm/lib/Target/SPIRV/SPIRVEmitNonSemanticDI.cpp b/llvm/lib/Target/SPIRV/SPIRVEmitNonSemanticDI.cpp
index b78f1c3f060a23..b2052964d423cf 100644
--- a/llvm/lib/Target/SPIRV/SPIRVEmitNonSemanticDI.cpp
+++ b/llvm/lib/Target/SPIRV/SPIRVEmitNonSemanticDI.cpp
@@ -83,8 +83,8 @@ bool SPIRVEmitNonSemanticDI::emitGlobalDI(MachineFunction &MF) {
// Required variables to get from metadata search
LLVMContext *Context;
- SmallString<128> FilePath;
- unsigned SourceLanguage = 0;
+ SmallVector<SmallString<128>> FilePaths;
+ SmallVector<int64_t> SourceLanguages;
int64_t DwarfVersion = 0;
int64_t DebugInfoVersion = 0;
SmallPtrSet<DIBasicType *, 12> BasicTypes;
@@ -101,9 +101,10 @@ bool SPIRVEmitNonSemanticDI::emitGlobalDI(MachineFunction &MF) {
for (const auto *Op : DbgCu->operands()) {
if (const auto *CompileUnit = dyn_cast<DICompileUnit>(Op)) {
DIFile *File = CompileUnit->getFile();
- sys::path::append(FilePath, File->getDirectory(), File->getFilename());
- SourceLanguage = CompileUnit->getSourceLanguage();
- break;
+ FilePaths.emplace_back();
+ sys::path::append(FilePaths.back(), File->getDirectory(),
+ File->getFilename());
+ SourceLanguages.push_back(CompileUnit->getSourceLanguage());
}
}
const NamedMDNode *ModuleFlags = M->getNamedMetadata("llvm.module.flags");
@@ -160,9 +161,6 @@ bool SPIRVEmitNonSemanticDI::emitGlobalDI(MachineFunction &MF) {
return StrReg;
};
- // Emit OpString with FilePath which is required by DebugSource
- const Register FilePathStrReg = EmitOpString(FilePath);
-
const SPIRVType *VoidTy =
GR->getOrCreateSPIRVType(Type::getVoidTy(*Context), MIRBuilder);
@@ -187,27 +185,29 @@ bool SPIRVEmitNonSemanticDI::emitGlobalDI(MachineFunction &MF) {
return InstReg;
};
- // Emit DebugSource which is required by DebugCompilationUnit
- const Register DebugSourceResIdReg = EmitDIInstruction(
- SPIRV::NonSemanticExtInst::DebugSource, {FilePathStrReg});
-
const SPIRVType *I32Ty =
GR->getOrCreateSPIRVType(Type::getInt32Ty(*Context), MIRBuilder);
- // Convert DwarfVersion, DebugInfo and SourceLanguage integers to OpConstant
- // instructions required by DebugCompilationUnit
const Register DwarfVersionReg =
GR->buildConstantInt(DwarfVersion, MIRBuilder, I32Ty, false);
const Register DebugInfoVersionReg =
GR->buildConstantInt(DebugInfoVersion, MIRBuilder, I32Ty, false);
- const Register SourceLanguageReg =
- GR->buildConstantInt(SourceLanguage, MIRBuilder, I32Ty, false);
- [[maybe_unused]]
- const Register DebugCompUnitResIdReg =
- EmitDIInstruction(SPIRV::NonSemanticExtInst::DebugCompilationUnit,
- {DebugInfoVersionReg, DwarfVersionReg,
- DebugSourceResIdReg, SourceLanguageReg});
+ for (unsigned Idx = 0; Idx < SourceLanguages.size(); ++Idx) {
+ const Register FilePathStrReg = EmitOpString(FilePaths[Idx]);
+
+ const Register DebugSourceResIdReg = EmitDIInstruction(
+ SPIRV::NonSemanticExtInst::DebugSource, {FilePathStrReg});
+
+ const Register SourceLanguageReg =
+ GR->buildConstantInt(SourceLanguages[Idx], MIRBuilder, I32Ty, false);
+
+ [[maybe_unused]]
+ const Register DebugCompUnitResIdReg =
+ EmitDIInstruction(SPIRV::NonSemanticExtInst::DebugCompilationUnit,
+ {DebugInfoVersionReg, DwarfVersionReg,
+ DebugSourceResIdReg, SourceLanguageReg});
+ }
// We aren't extracting any DebugInfoFlags now so we
// emitting zero to use as <id>Flags argument for DebugBasicType
diff --git a/llvm/test/CodeGen/SPIRV/debug-info/debug-compilation-unit.ll b/llvm/test/CodeGen/SPIRV/debug-info/debug-compilation-unit.ll
index bff4660559ab82..a3da5ae98b0caf 100644
--- a/llvm/test/CodeGen/SPIRV/debug-info/debug-compilation-unit.ll
+++ b/llvm/test/CodeGen/SPIRV/debug-info/debug-compilation-unit.ll
@@ -6,21 +6,29 @@
; CHECK-MIR-DAG: [[type_void:%[0-9]+\:type]] = OpTypeVoid
; CHECK-MIR-DAG: [[type_i64:%[0-9]+\:type\(s64\)]] = OpTypeInt 32, 0
; CHECK-MIR-DAG: [[dwarf_version:%[0-9]+\:iid\(s32\)]] = OpConstantI [[type_i64]], 5
-; CHECK-MIR-DAG: [[source_language:%[0-9]+\:iid\(s32\)]] = OpConstantI [[type_i64]], 3
-; CHECK-MIR-DAG: [[debug_info_version:%[0-9]+\:iid\(s32\)]] = OpConstantI [[type_i64]], 21
-; CHECK-MIR-DAG: [[filename_str:%[0-9]+\:id\(s32\)]] = OpString 1094795567, 1094795585, 792805697, 1111638594, 1111638594, 1128481583, 1128481603, {{1697596227|1700545347}}, 1886216568, 1663985004, 0
-; CHECK-MIR-DAG: [[debug_source:%[0-9]+\:id\(s32\)]] = OpExtInst [[type_void]], 3, 35, [[filename_str]]
-; CHECK-MIR-DAG: [[debug_compilation_unit:%[0-9]+\:id\(s32\)]] = OpExtInst [[type_void]], 3, 1, [[source_language]], [[dwarf_version]], [[debug_source]], [[debug_info_version]]
+; CHECK-MIR-DAG: [[debug_info_version:%[0-9]+\:iid\(s32\)]] = OpConstantI [[type_i64]], 3
+; CHECK-MIR-DAG: [[source_language_opencl:%[0-9]+\:iid\(s32\)]] = OpConstantI [[type_i64]], 21
+; CHECK-MIR-DAG: [[source_language_cpp:%[0-9]+\:iid\(s32\)]] = OpConstantI [[type_i64]], 4
+; CHECK-MIR-DAG: [[filename_str_opencl:%[0-9]+\:id\(s32\)]] = OpString 1094795567, 1094795585, 792805697, 1111638594, 1111638594, 1128481583, 1128481603, {{1697596227|1700545347}}, 1886216568, 1663985004, 0
+; CHECK-MIR-DAG: [[filename_str_cpp:%[0-9]+\:id\(s32\)]] = OpString 1145324591, 1145324612, 793003076, 1162167621, 1162167621, 1179010607, 1179010630, 1697596998, 1886216568, 774989164, 7368803
+; CHECK-MIR-DAG: [[debug_source_opencl:%[0-9]+\:id\(s32\)]] = OpExtInst [[type_void]], 3, 35, [[filename_str_opencl]]
+; CHECK-MIR-DAG: OpExtInst [[type_void]], 3, 1, [[debug_info_version]], [[dwarf_version]], [[debug_source_opencl]], [[source_language_opencl]]
+; CHECK-MIR-DAG: [[debug_source_cpp:%[0-9]+\:id\(s32\)]] = OpExtInst [[type_void]], 3, 35, [[filename_str_cpp]]
+; CHECK-MIR-DAG: OpExtInst [[type_void]], 3, 1, [[debug_info_version]], [[dwarf_version]], [[debug_source_cpp]], [[source_language_cpp]]
; CHECK-SPIRV: [[ext_inst_non_semantic:%[0-9]+]] = OpExtInstImport "NonSemantic.Shader.DebugInfo.100"
-; CHECK-SPIRV: [[filename_str:%[0-9]+]] = OpString "/AAAAAAAAAA/BBBBBBBB/CCCCCCCCC{{[/\\]}}example.c"
+; CHECK-SPIRV: [[filename_str_opencl:%[0-9]+]] = OpString "/AAAAAAAAAA/BBBBBBBB/CCCCCCCCC{{[/\\]}}example.c"
+; CHECK-SPIRV: [[filename_str_cpp:%[0-9]+]] = OpString "/DDDDDDDDDD/EEEEEEEE/FFFFFFFFF{{[/\\]}}example1.cpp"
; CHECK-SPIRV-DAG: [[type_void:%[0-9]+]] = OpTypeVoid
; CHECK-SPIRV-DAG: [[type_i32:%[0-9]+]] = OpTypeInt 32 0
; CHECK-SPIRV-DAG: [[dwarf_version:%[0-9]+]] = OpConstant [[type_i32]] 5
-; CHECK-SPIRV-DAG: [[debug_info_version:%[0-9]+]] = OpConstant [[type_i32]] 21
-; CHECK-SPIRV-DAG: [[source_language:%[0-9]+]] = OpConstant [[type_i32]] 3
-; CHECK-SPIRV: [[debug_source:%[0-9]+]] = OpExtInst [[type_void]] [[ext_inst_non_semantic]] DebugSource [[filename_str]]
-; CHECK-SPIRV: [[debug_compiation_unit:%[0-9]+]] = OpExtInst [[type_void]] [[ext_inst_non_semantic]] DebugCompilationUnit [[source_language]] [[dwarf_version]] [[debug_source]] [[debug_info_version]]
+; CHECK-SPIRV-DAG: [[source_language_opencl:%[0-9]+]] = OpConstant [[type_i32]] 21
+; CHECK-SPIRV-DAG: [[source_language_cpp:%[0-9]+]] = OpConstant [[type_i32]] 4
+; CHECK-SPIRV-DAG: [[debug_info_version:%[0-9]+]] = OpConstant [[type_i32]] 3
+; CHECK-SPIRV: [[debug_source_opencl:%[0-9]+]] = OpExtInst [[type_void]] [[ext_inst_non_semantic]] DebugSource [[filename_str_opencl]]
+; CHECK-SPIRV: OpExtInst [[type_void]] [[ext_inst_non_semantic]] DebugCompilationUnit [[debug_info_version]] [[dwarf_version]] [[debug_source_opencl]] [[source_language_opencl]]
+; CHECK-SPIRV: [[debug_source_cpp:%[0-9]+]] = OpExtInst [[type_void]] [[ext_inst_non_semantic]] DebugSource [[filename_str_cpp]]
+; CHECK-SPIRV: OpExtInst [[type_void]] [[ext_inst_non_semantic]] DebugCompilationUnit [[debug_info_version]] [[dwarf_version]] [[debug_source_cpp]] [[source_language_cpp]]
; CHECK-OPTION-NOT: OpExtInstImport "NonSemantic.Shader.DebugInfo.100"
; CHECK-OPTION-NOT: OpString "/AAAAAAAAAA/BBBBBBBB/CCCCCCCCC{{[/\\]}}example.c"
@@ -35,7 +43,7 @@ entry:
ret void
}
-!llvm.dbg.cu = !{!0}
+!llvm.dbg.cu = !{!0, !6}
!llvm.module.flags = !{!2, !3, !4, !5}
!0 = distinct !DICompileUnit(language: DW_LANG_OpenCL, file: !1, producer: "clang version XX.X.XXXX (FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)
@@ -44,3 +52,5 @@ entry:
!3 = !{i32 2, !"Debug Info Version", i32 3}
!4 = !{i32 1, !"wchar_size", i32 4}
!5 = !{i32 7, !"frame-pointer", i32 2}
+!6 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !7, producer: "clang version XX.X.XXXX (FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)
+!7 = !DIFile(filename: "example1.cpp", directory: "/DDDDDDDDDD/EEEEEEEE/FFFFFFFFF", checksumkind: CSK_MD5, checksum: "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF")
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@michalpaszkowski @VyacheslavLevytskyy @Keenuts @MrSidims Please review. Thank you. |
MrSidims
reviewed
Sep 23, 2024
The module in LLVM can have more then one Compilation Unit when e.g. modules are combined by llvm-linker. This property also needs to be handled in DI.
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The module in LLVM can have more then one CompilationUnit when e.g. modules are combined by llvm-linker.
This property also needs to be handled in DI.