commit 394db2259575ef3cac8d3d37836b11eb2373c435
Author: Amy Huang <akhuang@google.com>
Date:   Tue Jul 28 11:23:59 2020 -0700

    Revert "Switch to using -debug-info-kind=constructor as default (from =limited)"
    
    This reverts commit 227db86a1b7dd6f96f7df14890fcd071bc4fe1f5.
    
    Causing debug info errors in google3 LTO builds; also causes a
    debuginfo-test failure.

diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
index b0de225f8ab..68e4eb0eedd 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -498,7 +498,7 @@ static codegenoptions::DebugInfoKind DebugLevelToInfoKind(const Arg &A) {
     return codegenoptions::DebugLineTablesOnly;
   if (A.getOption().matches(options::OPT_gline_directives_only))
     return codegenoptions::DebugDirectivesOnly;
-  return codegenoptions::DebugInfoConstructor;
+  return codegenoptions::LimitedDebugInfo;
 }
 
 static bool mustUseNonLeafFramePointerForTarget(const llvm::Triple &Triple) {
@@ -2383,7 +2383,7 @@ static void CollectArgsForIntegratedAssembler(Compilation &C,
           CmdArgs.push_back(Value.data());
         } else {
           RenderDebugEnablingArgs(Args, CmdArgs,
-                                  codegenoptions::DebugInfoConstructor,
+                                  codegenoptions::LimitedDebugInfo,
                                   DwarfVersion, llvm::DebuggerKind::Default);
         }
       } else if (Value.startswith("-mcpu") || Value.startswith("-mfpu") ||
@@ -3656,7 +3656,7 @@ static void RenderDebugOptions(const ToolChain &TC, const Driver &D,
   if (const Arg *A =
           Args.getLastArg(options::OPT_g_Group, options::OPT_gsplit_dwarf,
                           options::OPT_gsplit_dwarf_EQ)) {
-    DebugInfoKind = codegenoptions::DebugInfoConstructor;
+    DebugInfoKind = codegenoptions::LimitedDebugInfo;
 
     // If the last option explicitly specified a debug-info level, use it.
     if (checkDebugInfoOption(A, Args, D, TC) &&
@@ -3761,7 +3761,7 @@ static void RenderDebugOptions(const ToolChain &TC, const Driver &D,
     if (checkDebugInfoOption(A, Args, D, TC)) {
       if (DebugInfoKind != codegenoptions::DebugLineTablesOnly &&
           DebugInfoKind != codegenoptions::DebugDirectivesOnly) {
-        DebugInfoKind = codegenoptions::DebugInfoConstructor;
+        DebugInfoKind = codegenoptions::LimitedDebugInfo;
         CmdArgs.push_back("-dwarf-ext-refs");
         CmdArgs.push_back("-fmodule-format=obj");
       }
@@ -3781,9 +3781,7 @@ static void RenderDebugOptions(const ToolChain &TC, const Driver &D,
           TC.GetDefaultStandaloneDebug());
   if (const Arg *A = Args.getLastArg(options::OPT_fstandalone_debug))
     (void)checkDebugInfoOption(A, Args, D, TC);
-  if ((DebugInfoKind == codegenoptions::LimitedDebugInfo ||
-       DebugInfoKind == codegenoptions::DebugInfoConstructor) &&
-      NeedFullDebug)
+  if (DebugInfoKind == codegenoptions::LimitedDebugInfo && NeedFullDebug)
     DebugInfoKind = codegenoptions::FullDebugInfo;
 
   if (Args.hasFlag(options::OPT_gembed_source, options::OPT_gno_embed_source,
@@ -6569,7 +6567,7 @@ void Clang::AddClangCLArgs(const ArgList &Args, types::ID InputType,
                           options::OPT_gline_tables_only)) {
     *EmitCodeView = true;
     if (DebugInfoArg->getOption().matches(options::OPT__SLASH_Z7))
-      *DebugInfoKind = codegenoptions::DebugInfoConstructor;
+      *DebugInfoKind = codegenoptions::LimitedDebugInfo;
     else
       *DebugInfoKind = codegenoptions::DebugLineTablesOnly;
   } else {
@@ -6866,7 +6864,7 @@ void ClangAs::ConstructJob(Compilation &C, const JobAction &JA,
     // the guard for source type, however there is a test which asserts
     // that some assembler invocation receives no -debug-info-kind,
     // and it's not clear whether that test is just overly restrictive.
-    DebugInfoKind = (WantDebug ? codegenoptions::DebugInfoConstructor
+    DebugInfoKind = (WantDebug ? codegenoptions::LimitedDebugInfo
                                : codegenoptions::NoDebugInfo);
     // Add the -fdebug-compilation-dir flag if needed.
     addDebugCompDirArg(Args, CmdArgs, C.getDriver().getVFS());
diff --git a/clang/test/Driver/cl-options.c b/clang/test/Driver/cl-options.c
index 0dcaf610880..d0c48ae41d9 100644
--- a/clang/test/Driver/cl-options.c
+++ b/clang/test/Driver/cl-options.c
@@ -524,11 +524,11 @@
 
 // RUN: %clang_cl /Zi /c -### -- %s 2>&1 | FileCheck -check-prefix=Zi %s
 // Zi: "-gcodeview"
-// Zi: "-debug-info-kind=constructor"
+// Zi: "-debug-info-kind=limited"
 
 // RUN: %clang_cl /Z7 /c -### -- %s 2>&1 | FileCheck -check-prefix=Z7 %s
 // Z7: "-gcodeview"
-// Z7: "-debug-info-kind=constructor"
+// Z7: "-debug-info-kind=limited"
 
 // RUN: %clang_cl /Zd /c -### -- %s 2>&1 | FileCheck -check-prefix=Z7GMLT %s
 // Z7GMLT: "-gcodeview"
@@ -557,7 +557,7 @@
 // which made it "win". This test could not detect that bug.
 // RUN: %clang_cl /Z7 -gdwarf /c -### -- %s 2>&1 | FileCheck -check-prefix=Z7_gdwarf %s
 // Z7_gdwarf: "-gcodeview"
-// Z7_gdwarf: "-debug-info-kind=constructor"
+// Z7_gdwarf: "-debug-info-kind=limited"
 // Z7_gdwarf: "-dwarf-version=4"
 
 // RUN: %clang_cl -fmsc-version=1800 -TP -### -- %s 2>&1 | FileCheck -check-prefix=CXX11 %s
diff --git a/clang/test/Driver/clang-g-opts.c b/clang/test/Driver/clang-g-opts.c
index 60c97790b7d..bc714b6c937 100644
--- a/clang/test/Driver/clang-g-opts.c
+++ b/clang/test/Driver/clang-g-opts.c
@@ -31,7 +31,7 @@
 // RUN:             | FileCheck --check-prefix=CHECK-WITH-G-DWARF2 %s
 
 // CHECK-WITHOUT-G-NOT: -debug-info-kind
-// CHECK-WITH-G: "-debug-info-kind=constructor"
+// CHECK-WITH-G: "-debug-info-kind=limited"
 // CHECK-WITH-G: "-dwarf-version=4"
 // CHECK-WITH-G-DWARF2: "-dwarf-version=2"
 
diff --git a/clang/test/Driver/cuda-dwarf-2.cu b/clang/test/Driver/cuda-dwarf-2.cu
index 92b8919729f..bcfb2444bc5 100644
--- a/clang/test/Driver/cuda-dwarf-2.cu
+++ b/clang/test/Driver/cuda-dwarf-2.cu
@@ -49,7 +49,7 @@
 
 // HAS_DEBUG-NOT: warning: debug
 // HAS_DEBUG: "-fcuda-is-device"
-// HAS_DEBUG-SAME: "-debug-info-kind={{constructor|line-tables-only}}"
+// HAS_DEBUG-SAME: "-debug-info-kind={{limited|line-tables-only}}"
 // HAS_DEBUG-SAME: "-dwarf-version=2"
 // HAS_DEBUG: ptxas
 // HAS_DEBUG-SAME: "-g"
diff --git a/clang/test/Driver/debug-options-as.c b/clang/test/Driver/debug-options-as.c
index 4808219702e..51475680e9b 100644
--- a/clang/test/Driver/debug-options-as.c
+++ b/clang/test/Driver/debug-options-as.c
@@ -23,7 +23,7 @@
 // RUN:   | FileCheck %s
 //
 // CHECK: "-cc1as"
-// CHECK: "-debug-info-kind=constructor"
+// CHECK: "-debug-info-kind=limited"
 
 // Check to make sure clang with -g on a .s file gets passed -dwarf-debug-producer.
 // rdar://12955296
diff --git a/clang/test/Driver/debug-options.c b/clang/test/Driver/debug-options.c
index 2d1a0b2d5cd..189c1f9adde 100644
--- a/clang/test/Driver/debug-options.c
+++ b/clang/test/Driver/debug-options.c
@@ -274,18 +274,18 @@
 // GLIO_ONLY_DWARF2: "-dwarf-version=2"
 //
 // G_ONLY: "-cc1"
-// G_ONLY: "-debug-info-kind=constructor"
+// G_ONLY: "-debug-info-kind=limited"
 //
 // These tests assert that "-gline-tables-only" "-g" uses the latter,
 // but otherwise not caring about the DebugInfoKind.
 // G_ONLY_DWARF2: "-cc1"
-// G_ONLY_DWARF2: "-debug-info-kind={{standalone|constructor}}"
+// G_ONLY_DWARF2: "-debug-info-kind={{standalone|limited}}"
 // G_ONLY_DWARF2: "-dwarf-version=2"
 //
 // G_STANDALONE: "-cc1"
 // G_STANDALONE: "-debug-info-kind=standalone"
 // G_LIMITED: "-cc1"
-// G_LIMITED: "-debug-info-kind=constructor"
+// G_LIMITED: "-debug-info-kind=limited"
 // G_DWARF2: "-dwarf-version=2"
 // G_DWARF4: "-dwarf-version=4"
 //
@@ -339,7 +339,7 @@
 // NOCI: "-gno-column-info"
 //
 // GEXTREFS: "-dwarf-ext-refs" "-fmodule-format=obj"
-// GEXTREFS: "-debug-info-kind={{standalone|constructor}}"
+// GEXTREFS: "-debug-info-kind={{standalone|limited}}"
 
 // RUN: not %clang -cc1 -debug-info-kind=watkind 2>&1 | FileCheck -check-prefix=BADSTRING1 %s
 // BADSTRING1: error: invalid value 'watkind' in '-debug-info-kind=watkind'
diff --git a/clang/test/Driver/integrated-as.s b/clang/test/Driver/integrated-as.s
index 05999cfe002..0194a3d5a43 100644
--- a/clang/test/Driver/integrated-as.s
+++ b/clang/test/Driver/integrated-as.s
@@ -27,19 +27,19 @@
 // XA_INCLUDE2: "-Ifoo_dir"
 
 // RUN: %clang -### -target x86_64--- -c -integrated-as %s -gdwarf-4 -gdwarf-2 2>&1 | FileCheck --check-prefix=DWARF2 %s
-// DWARF2: "-debug-info-kind=constructor" "-dwarf-version=2"
+// DWARF2: "-debug-info-kind=limited" "-dwarf-version=2"
 
 // RUN: %clang -### -target x86_64--- -c -integrated-as %s -gdwarf-3 2>&1 | FileCheck --check-prefix=DWARF3 %s
-// DWARF3: "-debug-info-kind=constructor" "-dwarf-version=3"
+// DWARF3: "-debug-info-kind=limited" "-dwarf-version=3"
 
 // RUN: %clang -### -target x86_64--- -c -integrated-as %s -gdwarf-4 2>&1 | FileCheck --check-prefix=DWARF4 %s
-// DWARF4: "-debug-info-kind=constructor" "-dwarf-version=4"
+// DWARF4: "-debug-info-kind=limited" "-dwarf-version=4"
 
 // RUN: %clang -### -target x86_64--- -c -integrated-as %s -Xassembler -gdwarf-2 2>&1 | FileCheck --check-prefix=DWARF2XASSEMBLER %s
-// DWARF2XASSEMBLER: "-debug-info-kind=constructor" "-dwarf-version=2"
+// DWARF2XASSEMBLER: "-debug-info-kind=limited" "-dwarf-version=2"
 
 // RUN: %clang -### -target x86_64--- -c -integrated-as %s -Wa,-gdwarf-2 2>&1 | FileCheck --check-prefix=DWARF2WA %s
-// DWARF2WA: "-debug-info-kind=constructor" "-dwarf-version=2"
+// DWARF2WA: "-debug-info-kind=limited" "-dwarf-version=2"
 
 // A dwarf version number that driver can't parse is just stuffed in.
 // RUN: %clang -### -target x86_64--- -c -integrated-as %s -Wa,-gdwarf-huh 2>&1 | FileCheck --check-prefix=BOGODWARF %s
diff --git a/clang/test/Driver/myriad-toolchain.c b/clang/test/Driver/myriad-toolchain.c
index a4bd260a149..215a02fd0de 100644
--- a/clang/test/Driver/myriad-toolchain.c
+++ b/clang/test/Driver/myriad-toolchain.c
@@ -83,7 +83,7 @@
 // NOSTDLIB-NOT: "-lc"
 
 // RUN: %clang -### -c -g %s -target sparc-myriad 2>&1 | FileCheck -check-prefix=G_SPARC %s
-// G_SPARC: "-debug-info-kind=constructor" "-dwarf-version=2"
+// G_SPARC: "-debug-info-kind=limited" "-dwarf-version=2"
 
 // RUN: %clang -### -c %s -target sparc-myriad-rtems -fuse-init-array 2>&1 \
 // RUN: | FileCheck -check-prefix=USE-INIT-ARRAY %s
diff --git a/clang/test/Driver/openmp-offload-gpu.c b/clang/test/Driver/openmp-offload-gpu.c
index 3ddd6446d11..6415f1d61b7 100644
--- a/clang/test/Driver/openmp-offload-gpu.c
+++ b/clang/test/Driver/openmp-offload-gpu.c
@@ -241,7 +241,7 @@
 
 // HAS_DEBUG-NOT: warning: debug
 // HAS_DEBUG: "-triple" "nvptx64-nvidia-cuda"
-// HAS_DEBUG-SAME: "-debug-info-kind={{constructor|line-tables-only}}"
+// HAS_DEBUG-SAME: "-debug-info-kind={{limited|line-tables-only}}"
 // HAS_DEBUG-SAME: "-dwarf-version=2"
 // HAS_DEBUG-SAME: "-fopenmp-is-device"
 // HAS_DEBUG: ptxas
diff --git a/clang/test/Driver/split-debug.c b/clang/test/Driver/split-debug.c
index 70f8d91d48e..d40207d5ae3 100644
--- a/clang/test/Driver/split-debug.c
+++ b/clang/test/Driver/split-debug.c
@@ -68,18 +68,18 @@
 // RUN: FileCheck -check-prefix=CHECK-NOINLINE-WITHOUT-SPLIT < %t %s
 //
 // CHECK-NOINLINE-WITHOUT-SPLIT: "-fno-split-dwarf-inlining"
-// CHECK-NOINLINE-WITHOUT-SPLIT: "-debug-info-kind=constructor"
+// CHECK-NOINLINE-WITHOUT-SPLIT: "-debug-info-kind=limited"
 
 // RUN: %clang -target x86_64-unknown-linux-gnu -gmlt -gsplit-dwarf -fno-split-dwarf-inlining -S -### %s 2> %t
 // RUN: FileCheck -check-prefix=CHECK-SPLIT-WITH-GMLT < %t %s
 //
-// CHECK-SPLIT-WITH-GMLT: "-debug-info-kind=constructor"
+// CHECK-SPLIT-WITH-GMLT: "-debug-info-kind=limited"
 // CHECK-SPLIT-WITH-GMLT: "-split-dwarf-output"
 
 // RUN: %clang -target x86_64-unknown-linux-gnu -gsplit-dwarf -fno-split-dwarf-inlining -S -### %s 2> %t
 // RUN: FileCheck -check-prefix=CHECK-SPLIT-WITH-NOINL < %t %s
 //
-// CHECK-SPLIT-WITH-NOINL: "-debug-info-kind=constructor"
+// CHECK-SPLIT-WITH-NOINL: "-debug-info-kind=limited"
 // CHECK-SPLIT-WITH-NOINL: "-split-dwarf-output"
 
 // RUN: %clang -target x86_64-unknown-linux-gnu -gsplit-dwarf -gmlt -fsplit-dwarf-inlining -S -### %s 2> %t
@@ -92,7 +92,7 @@
 // RUN: %clang -target x86_64-unknown-linux-gnu -gmlt -gsplit-dwarf -S -### %s 2> %t
 // RUN: FileCheck -check-prefix=CHECK-SPLIT-OVER-GMLT < %t %s
 //
-// CHECK-SPLIT-OVER-GMLT: "-debug-info-kind=constructor"
+// CHECK-SPLIT-OVER-GMLT: "-debug-info-kind=limited"
 // CHECK-SPLIT-OVER-GMLT: "-split-dwarf-file"
 // CHECK-SPLIT-OVER-GMLT: "-split-dwarf-output"
 
@@ -117,6 +117,6 @@
 // RUN: %clang -target x86_64-unknown-linux-gnu -g0 -gsplit-dwarf=split -S -### %s 2> %t
 // RUN: FileCheck -check-prefix=CHECK-SPLIT-OVER-G0 < %t %s
 //
-// CHECK-SPLIT-OVER-G0: "-debug-info-kind=constructor"
+// CHECK-SPLIT-OVER-G0: "-debug-info-kind=limited"
 // CHECK-SPLIT-OVER-G0: "-split-dwarf-file"
 // CHECK-SPLIT-OVER-G0: "-split-dwarf-output"
diff --git a/lldb/test/Shell/SymbolFile/PDB/Inputs/ClassLayoutTest.cpp b/lldb/test/Shell/SymbolFile/PDB/Inputs/ClassLayoutTest.cpp
index 503939680c5..3c4b005cdf1 100644
--- a/lldb/test/Shell/SymbolFile/PDB/Inputs/ClassLayoutTest.cpp
+++ b/lldb/test/Shell/SymbolFile/PDB/Inputs/ClassLayoutTest.cpp
@@ -106,7 +106,6 @@ protected:
 int main() {
   MemberTest::Base B1;
   B1.Get();
-  MemberTest::Class C1;
   MemberTest::Class::StaticMemberFunc(1, 10, 2);
   return 0;
 }