AMDGPU: Switch default dwarf version to 2

There were some problems unearthed with version 5,
which I am going to look at.

Differential Revision: https://reviews.llvm.org/D49613

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@337612 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Driver/ToolChains/AMDGPU.h b/lib/Driver/ToolChains/AMDGPU.h
index 588c24032b89f0691d23d934197f5244a3831896..36114d0dabc43d72341e8ec37fde5f8646584d53 100644 (file)
--- a/lib/Driver/ToolChains/AMDGPU.h
+++ b/lib/Driver/ToolChains/AMDGPU.h
@@ -56,7 +56,7 @@ protected:
 public:
   AMDGPUToolChain(const Driver &D, const llvm::Triple &Triple,
                   const llvm::opt::ArgList &Args);
-  unsigned GetDefaultDwarfVersion() const override { return 5; }
+  unsigned GetDefaultDwarfVersion() const override { return 2; }
   bool IsIntegratedAssemblerDefault() const override { return true; }
   llvm::opt::DerivedArgList *
   TranslateArgs(const llvm::opt::DerivedArgList &Args, StringRef BoundArch,

diff --git a/test/Driver/amdgpu-toolchain.c b/test/Driver/amdgpu-toolchain.c
index bd6bf7e34189728199d9e63410a32bac457517db..52a71975b7f9a740fb5c2245b24a3c9a1a6314d2 100644 (file)
--- a/test/Driver/amdgpu-toolchain.c
+++ b/test/Driver/amdgpu-toolchain.c
@@ -3,4 +3,4 @@
 // AS_LINK: ld.lld{{.*}} "-shared"
 
 // RUN: %clang -### -g -target amdgcn--amdhsa -mcpu=kaveri %s 2>&1 | FileCheck -check-prefix=DWARF_VER %s
-// DWARF_VER: "-dwarf-version=5"
+// DWARF_VER: "-dwarf-version=2"