[clang] [libc] [llvm] [AMDGPU] Use COV6 by default (PR #118515)

[Shilei Tian via cfe-commits]

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@@ -34,7 +34,7 @@
 
 static llvm::cl::opt<unsigned> DefaultAMDHSACodeObjectVersion(
     "amdhsa-code-object-version", llvm::cl::Hidden,
-    llvm::cl::init(llvm::AMDGPU::AMDHSA_COV5),
+    llvm::cl::init(llvm::AMDGPU::AMDHSA_COV6),
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shiltian wrote:

It does things. If we don't set the module flag, it will use this value. For module flag, we don't emit it by default. We only emit it when it is explicitly set by users.

https://github.com/llvm/llvm-project/pull/118515