This patch adds a new Clang compiler flag "-gline-tables-only".
It reduces the amount of emitted debug information:
1) DIEs in .debug_info have types DW_TAG_compile_unit, DW_TAG_subprogram,
DW_TAG_inlined_subroutine (for opt builds) and DW_TAG_lexical_block only.
2) .debug_str contains only function names.
3) No debug data for types/namespaces/variables is emitted.
4) The data in .debug_line is enough to produce valid stack traces with
function names and line numbers.
Reviewed by Eric Christopher.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156160 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGBlocks.cpp b/lib/CodeGen/CGBlocks.cpp
index 1a1fe65..dad8e7e 100644
--- a/lib/CodeGen/CGBlocks.cpp
+++ b/lib/CodeGen/CGBlocks.cpp
@@ -1134,15 +1134,17 @@
const VarDecl *variable = ci->getVariable();
DI->EmitLocation(Builder, variable->getLocation());
- const CGBlockInfo::Capture &capture = blockInfo.getCapture(variable);
- if (capture.isConstant()) {
- DI->EmitDeclareOfAutoVariable(variable, LocalDeclMap[variable],
- Builder);
- continue;
- }
+ if (CGM.getCodeGenOpts().DebugInfo >= CodeGenOptions::LimitedDebugInfo) {
+ const CGBlockInfo::Capture &capture = blockInfo.getCapture(variable);
+ if (capture.isConstant()) {
+ DI->EmitDeclareOfAutoVariable(variable, LocalDeclMap[variable],
+ Builder);
+ continue;
+ }
- DI->EmitDeclareOfBlockDeclRefVariable(variable, BlockPointer,
- Builder, blockInfo);
+ DI->EmitDeclareOfBlockDeclRefVariable(variable, BlockPointer,
+ Builder, blockInfo);
+ }
}
}