r341564 - Re-commit "Enable DWARF accelerator tables by default when tuning for lldb (-glldb => -gpubnames)""

[Pavel Labath via cfe-commits]

Author: labath
Date: Thu Sep  6 10:01:45 2018
New Revision: 341564

URL: http://llvm.org/viewvc/llvm-project?rev=341564&view=rev
Log:
Re-commit "Enable DWARF accelerator tables by default when tuning for lldb (-glldb => -gpubnames)""

This recommits r341472, which was reverted due to test failures on macos bots.

The issue was that a macos target implies -glldb which, together with
this patch added a -gpubnames switch where there previously wasn't one.
The intentions of those checks was to check that -gpubnames is not
emitted by default so I add an explicit -ggdb arg to those command lines
to get same behavior on all platforms (the fact that -glldb *does* set
-gpubnames is tested by a separate test).

Differential Revision: https://reviews.llvm.org/D51576

Modified:
    cfe/trunk/lib/Driver/ToolChains/Clang.cpp
    cfe/trunk/test/Driver/debug-options.c

Modified: cfe/trunk/lib/Driver/ToolChains/Clang.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/Clang.cpp?rev=341564&r1=341563&r2=341564&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/ToolChains/Clang.cpp (original)
+++ cfe/trunk/lib/Driver/ToolChains/Clang.cpp Thu Sep  6 10:01:45 2018
@@ -3072,7 +3072,7 @@ static void RenderDebugOptions(const Too
   const auto *PubnamesArg =
       Args.getLastArg(options::OPT_ggnu_pubnames, options::OPT_gno_gnu_pubnames,
                       options::OPT_gpubnames, options::OPT_gno_pubnames);
-  if (SplitDWARFArg ||
+  if (SplitDWARFArg || DebuggerTuning == llvm::DebuggerKind::LLDB ||
       (PubnamesArg && checkDebugInfoOption(PubnamesArg, Args, D, TC)))
     if (!PubnamesArg ||
         (!PubnamesArg->getOption().matches(options::OPT_gno_gnu_pubnames) &&

Modified: cfe/trunk/test/Driver/debug-options.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/debug-options.c?rev=341564&r1=341563&r2=341564&view=diff
==============================================================================
--- cfe/trunk/test/Driver/debug-options.c (original)
+++ cfe/trunk/test/Driver/debug-options.c Thu Sep  6 10:01:45 2018
@@ -153,18 +153,21 @@
 // RUN:        | FileCheck -check-prefix=GIGNORE %s
 //
 // RUN: %clang -### -c -ggnu-pubnames %s 2>&1 | FileCheck -check-prefix=GPUB %s
-// RUN: %clang -### -c %s 2>&1 | FileCheck -check-prefix=NOPUB %s
+// RUN: %clang -### -c -ggdb %s 2>&1 | FileCheck -check-prefix=NOPUB %s
 // RUN: %clang -### -c -ggnu-pubnames -gno-gnu-pubnames %s 2>&1 | FileCheck -check-prefix=NOPUB %s
 // RUN: %clang -### -c -ggnu-pubnames -gno-pubnames %s 2>&1 | FileCheck -check-prefix=NOPUB %s
 //
 // RUN: %clang -### -c -gpubnames %s 2>&1 | FileCheck -check-prefix=PUB %s
-// RUN: %clang -### -c %s 2>&1 | FileCheck -check-prefix=NOPUB %s
+// RUN: %clang -### -c -ggdb %s 2>&1 | FileCheck -check-prefix=NOPUB %s
 // RUN: %clang -### -c -gpubnames -gno-gnu-pubnames %s 2>&1 | FileCheck -check-prefix=NOPUB %s
 // RUN: %clang -### -c -gpubnames -gno-pubnames %s 2>&1 | FileCheck -check-prefix=NOPUB %s
 //
 // RUN: %clang -### -c -gsplit-dwarf %s 2>&1 | FileCheck -check-prefix=GPUB %s
 // RUN: %clang -### -c -gsplit-dwarf -gno-pubnames %s 2>&1 | FileCheck -check-prefix=NOPUB %s
 //
+// RUN: %clang -### -c -glldb %s 2>&1 | FileCheck -check-prefix=GPUB %s
+// RUN: %clang -### -c -glldb -gno-pubnames %s 2>&1 | FileCheck -check-prefix=NOPUB %s
+//
 // RUN: %clang -### -c -gdwarf-aranges %s 2>&1 | FileCheck -check-prefix=GARANGE %s
 //
 // RUN: %clang -### -fdebug-types-section -target x86_64-unknown-linux %s 2>&1 \