[llvm] [AMDGPU][GISel] Add RegBankLegalize support for G_SI_CALL (PR #165747)

[Petar Avramovic via llvm-commits]

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@@ -915,6 +917,12 @@ RegBankLegalizeRules::RegBankLegalizeRules(const GCNSubtarget &_ST,
 
   addRulesForGOpcs({G_READSTEADYCOUNTER}, Standard).Uni(S64, {{Sgpr64}, {}});
 
+  addRulesForGOpcs({G_SI_CALL})
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petar-avramovic wrote:

What about other addr spaces, are P0 and P4 only ones that are required to be supported?

https://github.com/llvm/llvm-project/pull/165747