[PATCH] D106909: [clang] Add clang builtins support for gfx90a

Matt Arsenault via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Mon Aug 2 15:47:22 PDT 2021


arsenm added inline comments.


================
Comment at: clang/lib/CodeGen/CGBuiltin.cpp:16212
+  case AMDGPU::BI__builtin_amdgcn_flat_atomic_fmax_f64: {
+    Intrinsic::ID IID;
+    llvm::Type *ArgTy = llvm::Type::getDoubleTy(getLLVMContext());
----------------
rampitec wrote:
> gandhi21299 wrote:
> > rampitec wrote:
> > > You do not need any of that code. You can directly map a builtin to intrinsic in the IntrinsicsAMDGPU.td.
> > Sorry, I looked around for several days but I could not figure this out. Is there a concrete example?
> Every instantiation of `GCCBuiltin` in the `IntrinsicsAMDGPU.td`.
This is not true if the intrinsic requires type mangling. GCCBuiltin is too simple to handle it


Repository:
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CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D106909/new/

https://reviews.llvm.org/D106909



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