[clang] [llvm] [AMDGPU][WIP] Extend readlane, writelane and readfirstlane intrinsic lowering for generic types (PR #89217)

[Matt Arsenault via cfe-commits]

================
@@ -2176,26 +2176,23 @@ def int_amdgcn_wave_reduce_umin : AMDGPUWaveReduce;
 def int_amdgcn_wave_reduce_umax : AMDGPUWaveReduce;
 
 def int_amdgcn_readfirstlane :
-  ClangBuiltin<"__builtin_amdgcn_readfirstlane">,
-  Intrinsic<[llvm_i32_ty], [llvm_i32_ty],
+  Intrinsic<[llvm_any_ty], [LLVMMatchType<0>],
             [IntrNoMem, IntrConvergent, IntrWillReturn, IntrNoCallback, 
IntrNoFree]>;
 
 // The lane argument must be uniform across the currently active threads of the
 // current wave. Otherwise, the result is undefined.
 def int_amdgcn_readlane :
-  ClangBuiltin<"__builtin_amdgcn_readlane">,
-  Intrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty],
+  Intrinsic<[llvm_any_ty], [LLVMMatchType<0>, llvm_i32_ty],
             [IntrNoMem, IntrConvergent, IntrWillReturn, IntrNoCallback, 
IntrNoFree]>;
 
 // The value to write and lane select arguments must be uniform across the
 // currently active threads of the current wave. Otherwise, the result is
 // undefined.
 def int_amdgcn_writelane :
-  ClangBuiltin<"__builtin_amdgcn_writelane">,
-  Intrinsic<[llvm_i32_ty], [
-    llvm_i32_ty,    // uniform value to write: returned by the selected lane
-    llvm_i32_ty,    // uniform lane select
-    llvm_i32_ty     // returned by all lanes other than the selected one
+  Intrinsic<[llvm_any_ty], [
+    LLVMMatchType<0>,    // uniform value to write: returned by the selected 
lane
+    llvm_i32_ty,        // uniform lane select
+    LLVMMatchType<0>     // returned by all lanes other than the selected one
----------------
arsenm wrote:

Comments are no longer aligned 

https://github.com/llvm/llvm-project/pull/89217
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