From: Reid Kleckner <rnk@google.com>
Date: Mon, 26 Feb 2018 22:55:33 +0000 (+0000)
Subject: Re-land "Emit proper CodeView when -gcodeview is passed without the cl driver."
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=2cdcd07b15dc89551a89cf8f654a951233e0704d;p=clang

Re-land "Emit proper CodeView when -gcodeview is passed without the cl driver."

Reverts r326116 and re-lands r326113 with a fix to ASan so that it
enables column info in its test suite.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@326141 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Driver/ToolChains/Clang.cpp b/lib/Driver/ToolChains/Clang.cpp
index a2248ddaa9..6ad38bc0e4 100644
--- a/lib/Driver/ToolChains/Clang.cpp
+++ b/lib/Driver/ToolChains/Clang.cpp
@@ -2968,7 +2968,7 @@ static void RenderDebugOptions(const ToolChain &TC, const Driver &D,
 
   // Forward -gcodeview. EmitCodeView might have been set by CL-compatibility
   // argument parsing.
-  if (Args.hasArg(options::OPT_gcodeview) || EmitCodeView) {
+  if (EmitCodeView) {
     // DWARFVersion remains at 0 if no explicit choice was made.
     CmdArgs.push_back("-gcodeview");
   } else if (DWARFVersion == 0 &&
@@ -3567,6 +3567,8 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
   types::ID InputType = Input.getType();
   if (D.IsCLMode())
     AddClangCLArgs(Args, InputType, CmdArgs, &DebugInfoKind, &EmitCodeView);
+  else
+    EmitCodeView = Args.hasArg(options::OPT_gcodeview);
 
   const Arg *SplitDWARFArg = nullptr;
   RenderDebugOptions(getToolChain(), D, RawTriple, Args, EmitCodeView,
diff --git a/test/Driver/codeview-column-info.c b/test/Driver/codeview-column-info.c
new file mode 100644
index 0000000000..9f2f016a5f
--- /dev/null
+++ b/test/Driver/codeview-column-info.c
@@ -0,0 +1,13 @@
+// Check that -dwarf-column-info does not get added to the cc1 line:
+// 1) When -gcodeview is present via the clang or clang++ driver
+// 2) When /Z7 is present via the cl driver.
+
+// RUN: %clang -### -c -g -gcodeview %s 2> %t1
+// RUN: FileCheck < %t1 %s
+// RUN: %clangxx -### -c -g -gcodeview %s 2> %t2
+// RUN: FileCheck < %t2 %s
+// RUN: %clang_cl -### /c /Z7 %s 2> %t2
+// RUN: FileCheck < %t2 %s
+
+// CHECK: "-cc1"
+// CHECK-NOT: "-dwarf-column-info"