Driver: Support -gmlt as an alias for -gline-tables-only

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@203603 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/clang/Driver/Options.td b/include/clang/Driver/Options.td
index 2a48e6f41952563d88b310619e1f70cb65392bc4..b3dd5c3b90635ed891619b8af38ac7b2977c94fe 100644 (file)
--- a/include/clang/Driver/Options.td
+++ b/include/clang/Driver/Options.td
@@ -900,6 +900,8 @@ def g_Flag : Flag<["-"], "g">, Group<g_Group>,
   HelpText<"Generate source level debug information">, Flags<[CC1Option]>;
 def gline_tables_only : Flag<["-"], "gline-tables-only">, Group<g_Group>,
   HelpText<"Emit debug line number tables only">, Flags<[CC1Option]>;
+def gmlt : Flag<["-"], "gmlt">, Group<g_Group>,
+  HelpText<"Emit debug line number tables only">, Flags<[DriverOption,HelpHidden]>;
 def g0 : Flag<["-"], "g0">, Group<g_Group>;
 def g1 : Flag<["-"], "g1">, Group<g_Group>;
 def g2 : Flag<["-"], "g2">, Group<g_Group>;

diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index d76ff5cde051ab69d8afffa93482fa80076ae8fe..537390a7da35ceed7bf55e30f8185d472ff8c74a 100644 (file)
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -2693,7 +2693,8 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
   // are preserved, all other debug options are substituted with "-g".
   Args.ClaimAllArgs(options::OPT_g_Group);
   if (Arg *A = Args.getLastArg(options::OPT_g_Group)) {
-    if (A->getOption().matches(options::OPT_gline_tables_only)) {
+    if (A->getOption().matches(options::OPT_gline_tables_only) ||
+        A->getOption().matches(options::OPT_gmlt)) {
       // FIXME: we should support specifying dwarf version with
       // -gline-tables-only.
       CmdArgs.push_back("-gline-tables-only");

diff --git a/test/Driver/debug-options.c b/test/Driver/debug-options.c
index 2ea4990bd0acc0a236544ae6fd7aa3da77359865..48f686bb33ea3affb058c7240ff03be83f459e02 100644 (file)
--- a/test/Driver/debug-options.c
+++ b/test/Driver/debug-options.c
@@ -33,6 +33,8 @@
 // RUN: %clang -### -c -g -g0 %s 2>&1 | FileCheck -check-prefix=G_NO %s
 // RUN: %clang -### -c -ggdb0 %s 2>&1 | FileCheck -check-prefix=G_NO %s
 //
+// RUN: %clang -### -c -gmlt %s 2>&1 \
+// RUN:             | FileCheck -check-prefix=GLTO_ONLY %s
 // RUN: %clang -### -c -gline-tables-only %s 2>&1 \
 // RUN:             | FileCheck -check-prefix=GLTO_ONLY %s
 // RUN: %clang -### -c -gline-tables-only %s -target x86_64-apple-darwin 2>&1 \