[PATCH] D127498: [SystemZ/z/OS] Set DWARF version to 4 for z/OS.

[Kai Nacke via Phabricator via cfe-commits]

Kai created this revision.
Kai added reviewers: uweigand, jnspaulsson, abhina.sreeskantharajan, 
yusra.syeda.
Herald added a project: All.
Kai requested review of this revision.
Herald added subscribers: cfe-commits, MaskRay.
Herald added a project: clang.

The DWARF version was raised to 5 for all platforms which do not opt
out. Default to DWARF version to 4 for z/OS again.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D127498

Files:
  clang/lib/Driver/ToolChains/ZOS.h
  clang/test/Driver/zos-dwarfversion.c


Index: clang/test/Driver/zos-dwarfversion.c
===================================================================
--- /dev/null
+++ clang/test/Driver/zos-dwarfversion.c
@@ -0,0 +1,3 @@
+// RUN: %clang -target s390x-none-zos -g -S -emit-llvm %s -o - | FileCheck %s
+
+// CHECK: !"Dwarf Version", i32 4
Index: clang/lib/Driver/ToolChains/ZOS.h
===================================================================
--- clang/lib/Driver/ToolChains/ZOS.h
+++ clang/lib/Driver/ToolChains/ZOS.h
@@ -30,6 +30,8 @@
 
   bool IsIntegratedAssemblerDefault() const override { return true; }
 
+  unsigned GetDefaultDwarfVersion() const override { return 4; }
+
   void addClangTargetOptions(
       const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args,
       Action::OffloadKind DeviceOffloadingKind) const override;



Index: clang/test/Driver/zos-dwarfversion.c
===================================================================
--- /dev/null
+++ clang/test/Driver/zos-dwarfversion.c
@@ -0,0 +1,3 @@
+// RUN: %clang -target s390x-none-zos -g -S -emit-llvm %s -o - | FileCheck %s
+
+// CHECK: !"Dwarf Version", i32 4
Index: clang/lib/Driver/ToolChains/ZOS.h
===================================================================
--- clang/lib/Driver/ToolChains/ZOS.h
+++ clang/lib/Driver/ToolChains/ZOS.h
@@ -30,6 +30,8 @@
 
   bool IsIntegratedAssemblerDefault() const override { return true; }
 
+  unsigned GetDefaultDwarfVersion() const override { return 4; }
+
   void addClangTargetOptions(
       const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args,
       Action::OffloadKind DeviceOffloadingKind) const override;

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