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

[Chinmay Deshpande via llvm-commits]

================
@@ -80,6 +80,23 @@ bool RegBankLegalizeHelper::findRuleAndApplyMapping(MachineInstr &MI) {
 bool RegBankLegalizeHelper::executeInWaterfallLoop(
     MachineIRBuilder &B, iterator_range<MachineBasicBlock::iterator> Range,
     SmallSet<Register, 4> &SGPROperandRegs) {
+
----------------
chinmaydd wrote:

Moved special casing

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