Attempt to migrate default dwarf version to 4 for linux.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189823 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp
index 819ed4b135cf8d6193aff01a4bbd1458fe66d93d..7e21f55c76c8158e2f640249d126992fa1dd224d 100644 (file)
--- a/lib/Frontend/CompilerInvocation.cpp
+++ b/lib/Frontend/CompilerInvocation.cpp
@@ -334,8 +334,8 @@ static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
   else if (Args.hasArg(OPT_gdwarf_4))
     Opts.DwarfVersion = 4;
   else if (Opts.getDebugInfo() != CodeGenOptions::NoDebugInfo)
-    // Default Dwarf version is 3 if we are generating debug information.
-    Opts.DwarfVersion = 3;
+    // Default Dwarf version is 4 if we are generating debug information.
+    Opts.DwarfVersion = 4;
 
   Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns);
   Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);

diff --git a/test/CodeGen/dwarf-version.c b/test/CodeGen/dwarf-version.c
index 6624b67538731342d4d27bdd7d72056a38d8d49c..6c0f097a3b88458673df40ccae1ebc03a4fe375a 100644 (file)
--- a/test/CodeGen/dwarf-version.c
+++ b/test/CodeGen/dwarf-version.c
@@ -10,5 +10,5 @@ int main (void) {
 // CHECK: metadata !{i32 2, metadata !"Dwarf Version", i32 2}
 // VER3: metadata !{i32 2, metadata !"Dwarf Version", i32 3}
 // VER4: metadata !{i32 2, metadata !"Dwarf Version", i32 4}
-// LINUX: metadata !{i32 2, metadata !"Dwarf Version", i32 3}
+// LINUX: metadata !{i32 2, metadata !"Dwarf Version", i32 4}
 // DARWIN: metadata !{i32 2, metadata !"Dwarf Version", i32 2}