[cc1as] Change -compress-debug-sections= to use --

The double dash form is documented by GNU as, used by gcc, and accepted by llvm-mc.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@360495 91177308-0d34-0410-b5e6-96231b3b80d8

5 files changed, 15 insertions, 17 deletions

diff --git a/include/clang/Driver/CC1Options.td b/include/clang/Driver/CC1Options.td
index d18c37eb36..e452c01842 100644
--- a/include/clang/Driver/CC1Options.td
+++ b/include/clang/Driver/CC1Options.td
@@ -178,7 +178,7 @@ def record_command_line : Separate<["-"], "record-command-line">,
   HelpText<"The string to embed in the .LLVM.command.line section.">;
 def compress_debug_sections : Flag<["-", "--"], "compress-debug-sections">,
     HelpText<"DWARF debug sections compression">;
-def compress_debug_sections_EQ : Joined<["-"], "compress-debug-sections=">,
+def compress_debug_sections_EQ : Joined<["-", "--"], "compress-debug-sections=">,
     HelpText<"DWARF debug sections compression type">;
 def mno_exec_stack : Flag<["-"], "mnoexecstack">,
   HelpText<"Mark the file as not needing an executable stack">;
diff --git a/lib/Driver/ToolChains/Clang.cpp b/lib/Driver/ToolChains/Clang.cpp
index b771bf01af..2e17b4fc69 100644
--- a/lib/Driver/ToolChains/Clang.cpp
+++ b/lib/Driver/ToolChains/Clang.cpp
@@ -1007,7 +1007,7 @@ static void RenderDebugInfoCompressionArgs(const ArgList &Args,
   if (checkDebugInfoOption(A, Args, D, TC)) {
     if (A->getOption().getID() == options::OPT_gz) {
       if (llvm::zlib::isAvailable())
-        CmdArgs.push_back("-compress-debug-sections");
+        CmdArgs.push_back("--compress-debug-sections");
       else
         D.Diag(diag::warn_debug_compression_unavailable);
       return;
@@ -1015,11 +1015,11 @@ static void RenderDebugInfoCompressionArgs(const ArgList &Args,
 
     StringRef Value = A->getValue();
     if (Value == "none") {
-      CmdArgs.push_back("-compress-debug-sections=none");
+      CmdArgs.push_back("--compress-debug-sections=none");
     } else if (Value == "zlib" || Value == "zlib-gnu") {
       if (llvm::zlib::isAvailable()) {
         CmdArgs.push_back(
-            Args.MakeArgString("-compress-debug-sections=" + Twine(Value)));
+            Args.MakeArgString("--compress-debug-sections=" + Twine(Value)));
       } else {
         D.Diag(diag::warn_debug_compression_unavailable);
       }
diff --git a/lib/Driver/ToolChains/Gnu.cpp b/lib/Driver/ToolChains/Gnu.cpp
index ecf02f9f2e..9180afd910 100644
--- a/lib/Driver/ToolChains/Gnu.cpp
+++ b/lib/Driver/ToolChains/Gnu.cpp
@@ -627,14 +627,12 @@ void tools::gnutools::Assembler::ConstructJob(Compilation &C,
 
   if (const Arg *A = Args.getLastArg(options::OPT_gz, options::OPT_gz_EQ)) {
     if (A->getOption().getID() == options::OPT_gz) {
-      CmdArgs.push_back("-compress-debug-sections");
+      CmdArgs.push_back("--compress-debug-sections");
     } else {
       StringRef Value = A->getValue();
-      if (Value == "none") {
-        CmdArgs.push_back("-compress-debug-sections=none");
-      } else if (Value == "zlib" || Value == "zlib-gnu") {
+      if (Value == "none" || Value == "zlib" || Value == "zlib-gnu") {
         CmdArgs.push_back(
-            Args.MakeArgString("-compress-debug-sections=" + Twine(Value)));
+            Args.MakeArgString("--compress-debug-sections=" + Twine(Value)));
       } else {
         D.Diag(diag::err_drv_unsupported_option_argument)
             << A->getOption().getName() << Value;
diff --git a/test/Driver/compress-noias.c b/test/Driver/compress-noias.c
index d20cf366b8..fa7482f4ab 100644
--- a/test/Driver/compress-noias.c
+++ b/test/Driver/compress-noias.c
@@ -17,19 +17,19 @@
 
 // RUN: %clang -### -target i686-unknown-linux-gnu -fno-integrated-as -gz -x assembler -c %s 2>&1 | FileCheck -check-prefix CHECK-OPT_GZ %s
 // RUN: %clang -### -target i686-unknown-linux-gnu -fno-integrated-as -gz -c %s 2>&1 | FileCheck -check-prefix CHECK-OPT_GZ %s
-// CHECK-OPT_GZ: "-compress-debug-sections"
+// CHECK-OPT_GZ: "--compress-debug-sections"
 
 // RUN: %clang -### -target i686-unknown-linux-gnu -fno-integrated-as -gz=none -x assembler -c %s 2>&1 | FileCheck -check-prefix CHECK-OPT_GZ_EQ_NONE %s
 // RUN: %clang -### -target i686-unknown-linux-gnu -fno-integrated-as -gz=none -c %s 2>&1 | FileCheck -check-prefix CHECK-OPT_GZ_EQ_NONE %s
-// CHECK-OPT_GZ_EQ_NONE: "-compress-debug-sections=none"
+// CHECK-OPT_GZ_EQ_NONE: "--compress-debug-sections=none"
 
 // RUN: %clang -### -target i686-unknown-linux-gnu -fno-integrated-as -gz=zlib -x assembler -c %s 2>&1 | FileCheck -check-prefix CHECK-OPT_GZ_EQ_ZLIB %s
 // RUN: %clang -### -target i686-unknown-linux-gnu -fno-integrated-as -gz=zlib -c %s 2>&1 | FileCheck -check-prefix CHECK-OPT_GZ_EQ_ZLIB %s
-// CHECK-OPT_GZ_EQ_ZLIB: "-compress-debug-sections=zlib"
+// CHECK-OPT_GZ_EQ_ZLIB: "--compress-debug-sections=zlib"
 
 // RUN: %clang -### -target i686-unknown-linux-gnu -fno-integrated-as -gz=zlib-gnu -x assembler -c %s 2>&1 | FileCheck -check-prefix CHECK-OPT_GZ_EQ_ZLIB_GNU %s
 // RUN: %clang -### -target i686-unknown-linux-gnu -fno-integrated-as -gz=zlib-gnu -c %s 2>&1 | FileCheck -check-prefix CHECK-OPT_GZ_EQ_ZLIB_GNU %s
-// CHECK-OPT_GZ_EQ_ZLIB_GNU: "-compress-debug-sections=zlib-gnu"
+// CHECK-OPT_GZ_EQ_ZLIB_GNU: "--compress-debug-sections=zlib-gnu"
 
 // RUN: %clang -### -target i686-unknown-linux-gnu -fno-integrated-as -gz=invalid -x assembler -c %s 2>&1 | FileCheck -check-prefix CHECK-OPT_GZ_EQ_INVALID %s
 // RUN: %clang -### -target i686-unknown-linux-gnu -fno-integrated-as -gz=invalid -c %s 2>&1 | FileCheck -check-prefix CHECK-OPT_GZ_EQ_INVALID %s
diff --git a/test/Driver/compress.c b/test/Driver/compress.c
index a00ce91225..1a16c6385c 100644
--- a/test/Driver/compress.c
+++ b/test/Driver/compress.c
@@ -16,19 +16,19 @@
 
 // RUN: %clang -### -fintegrated-as -gz -x assembler -c %s 2>&1 | FileCheck -check-prefix CHECK-OPT_GZ %s
 // RUN: %clang -### -fintegrated-as -gz -c %s 2>&1 | FileCheck -check-prefix CHECK-OPT_GZ %s
-// CHECK-OPT_GZ: "-compress-debug-sections"
+// CHECK-OPT_GZ: "--compress-debug-sections"
 
 // RUN: %clang -### -fintegrated-as -gz=none -x assembler -c %s 2>&1 | FileCheck -check-prefix CHECK-OPT_GZ_EQ_NONE %s
 // RUN: %clang -### -fintegrated-as -gz=none -c %s 2>&1 | FileCheck -check-prefix CHECK-OPT_GZ_EQ_NONE %s
-// CHECK-OPT_GZ_EQ_NONE: "-compress-debug-sections=none"
+// CHECK-OPT_GZ_EQ_NONE: "--compress-debug-sections=none"
 
 // RUN: %clang -### -fintegrated-as -gz=zlib -x assembler -c %s 2>&1 | FileCheck -check-prefix CHECK-OPT_GZ_EQ_ZLIB %s
 // RUN: %clang -### -fintegrated-as -gz=zlib -c %s 2>&1 | FileCheck -check-prefix CHECK-OPT_GZ_EQ_ZLIB %s
-// CHECK-OPT_GZ_EQ_ZLIB: "-compress-debug-sections=zlib"
+// CHECK-OPT_GZ_EQ_ZLIB: "--compress-debug-sections=zlib"
 
 // RUN: %clang -### -fintegrated-as -gz=zlib-gnu -x assembler -c %s 2>&1 | FileCheck -check-prefix CHECK-OPT_GZ_EQ_ZLIB_GNU %s
 // RUN: %clang -### -fintegrated-as -gz=zlib-gnu -c %s 2>&1 | FileCheck -check-prefix CHECK-OPT_GZ_EQ_ZLIB_GNU %s
-// CHECK-OPT_GZ_EQ_ZLIB_GNU: "-compress-debug-sections=zlib-gnu"
+// CHECK-OPT_GZ_EQ_ZLIB_GNU: "--compress-debug-sections=zlib-gnu"
 
 // RUN: %clang -### -fintegrated-as -gz=invalid -x assembler -c %s 2>&1 | FileCheck -check-prefix CHECK-OPT_GZ_EQ_INVALID %s
 // RUN: %clang -### -fintegrated-as -gz=invalid -c %s 2>&1 | FileCheck -check-prefix CHECK-OPT_GZ_EQ_INVALID %s