void DwarfDebug::beginModule() {
NamedRegionTimer T(DbgTimerName, DbgTimerDescription, DWARFGroupName,
DWARFGroupDescription, TimePassesIsEnabled);
- if (DisableDebugInfoPrinting)
+ if (DisableDebugInfoPrinting) {
+ MMI->setDebugInfoAvailability(false);
return;
+ }
const Module *M = MMI->getModule();
unsigned NumDebugCUs = std::distance(M->debug_compile_units_begin(),
M->debug_compile_units_end());
// Tell MMI whether we have debug info.
- MMI->setDebugInfoAvailability(NumDebugCUs > 0);
+ assert(MMI->hasDebugInfo() == (NumDebugCUs > 0) &&
+ "DebugInfoAvailabilty initialized unexpectedly");
SingleCU = NumDebugCUs == 1;
DenseMap<DIGlobalVariable *, SmallVector<DwarfCompileUnit::GlobalExpr, 1>>
GVMap;
bool MachineModuleInfo::doInitialization(Module &M) {
ObjFileMMI = nullptr;
CurCallSite = 0;
- DbgInfoAvailable = UsesVAFloatArgument = UsesMorestackAddr = false;
+ UsesVAFloatArgument = UsesMorestackAddr = false;
HasSplitStack = HasNosplitStack = false;
AddrLabelSymbols = nullptr;
TheModule = &M;
+ DbgInfoAvailable = !empty(M.debug_compile_units());
return false;
}
--- /dev/null
+; RUN: llc -o - %s -fast-isel -stop-before=expand-isel-pseudos | FileCheck %s
+; Make sure fast-isel produces DBG_VALUE instructions even if no debug printer
+; is scheduled because of -stop-before.
+target triple="aarch64--"
+
+; CHECK-LABEL: name: func
+; CHECK: DBG_VALUE
+define void @func(i32 %a) !dbg !4 {
+ call void @llvm.dbg.declare(metadata i32 %a, metadata !5, metadata !DIExpression()), !dbg !7
+ ret void
+}
+
+declare void @llvm.dbg.declare(metadata, metadata, metadata) #0
+attributes #0 = { nounwind readnone speculatable }
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!2, !3}
+
+!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, isOptimized: false, runtimeVersion: 0, emissionKind: LineTablesOnly)
+!1 = !DIFile(filename: "fast-isel-dbg.ll", directory: "/")
+!2 = !{i32 2, !"Dwarf Version", i32 4}
+!3 = !{i32 2, !"Debug Info Version", i32 3}
+!4 = distinct !DISubprogram(name: "func", scope: null, isLocal: false, isDefinition: true, isOptimized: false, unit: !0)
+!5 = !DILocalVariable(name: "a", arg: 1, scope: !4, file: !1, line: 17, type: !6)
+!6 = !DIBasicType(name: "unsigned int", size: 32, encoding: DW_ATE_unsigned)
+!7 = !DILocation(line: 17, scope: !4)