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-rw-r--r--clang/lib/Driver/Tools.cpp12
1 files changed, 8 insertions, 4 deletions
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 2db1b60..f8c713c3 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -2574,7 +2574,7 @@ static void getTargetFeatures(const ToolChain &TC, const llvm::Triple &Triple,
case llvm::Triple::wasm32:
case llvm::Triple::wasm64:
getWebAssemblyTargetFeatures(Args, Features);
- break;
+ break;
case llvm::Triple::sparc:
case llvm::Triple::sparcel:
case llvm::Triple::sparcv9:
@@ -4656,9 +4656,13 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
// We ignore flags -gstrict-dwarf and -grecord-gcc-switches for now.
Args.ClaimAllArgs(options::OPT_g_flags_Group);
- // PS4 defaults to no column info
+ // Column info is included by default for everything except PS4 and CodeView.
+ // Clang doesn't track end columns, just starting columns, which, in theory,
+ // is fine for CodeView (and PDB). In practice, however, the Microsoft
+ // debuggers don't handle missing end columns well, so it's better not to
+ // include any column info.
if (Args.hasFlag(options::OPT_gcolumn_info, options::OPT_gno_column_info,
- /*Default=*/ !IsPS4CPU))
+ /*Default=*/ !IsPS4CPU && !(IsWindowsMSVC && EmitCodeView)))
CmdArgs.push_back("-dwarf-column-info");
// FIXME: Move backend command line options to the module.
@@ -6712,7 +6716,7 @@ void ClangAs::ConstructJob(Compilation &C, const JobAction &JA,
case llvm::Triple::mips64el:
AddMIPSTargetArgs(Args, CmdArgs);
break;
-
+
case llvm::Triple::x86:
case llvm::Triple::x86_64:
AddX86TargetArgs(Args, CmdArgs);