[PATCH] D26730: AMDGPU/GlobalISel: Add support for simple shaders

Matt Arsenault via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Dec 15 13:26:45 PST 2016

arsenm added inline comments.

Comment at: lib/Target/AMDGPU/AMDGPUCallLowering.cpp:39
                                         const Value *Val, unsigned VReg) const {
+  MIRBuilder.buildInstr(AMDGPU::S_ENDPGM);
   return true;
ab wrote:
> Is the returned vreg ignored because all functions are void?
Yes. For now only some graphics shaders are allowed to have return values which aren't necessary for the initial implementation


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