[llvm] AMDGPU: Fix gcc build break (PR #161354)

[Petar Avramovic via llvm-commits]

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@@ -4268,7 +4268,10 @@ Register AMDGPUInstructionSelector::copyToVGPRIfSrcFolded(
 
 InstructionSelector::ComplexRendererFns
 AMDGPUInstructionSelector::selectIgnore(MachineOperand &Root) const {
-  return {{}};
+  // Don't render anything.
+  ComplexRendererFns Renderers;
+  Renderers.emplace();
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petar-avramovic wrote:

get
LLVM ERROR: cannot select: G_INTRINSIC_CONVERGENT_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.s.barrier.leave), 1 (in function: kernel1)
without it

https://github.com/llvm/llvm-project/pull/161354