[PATCH] D150671: RISCV/InstrInfo: model register pressure for MICombiner

[Craig Topper via Phabricator via llvm-commits]

craig.topper added inline comments.


================
Comment at: llvm/lib/Target/RISCV/RISCVInstrInfo.cpp:1412
+
+bool RISCVInstrInfo::shouldReduceRegisterPressure(
+    const MachineBasicBlock *MBB, const RegisterClassInfo *RegClassInfo) const {
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Does this get called for register classes other than GPR?

If the GPR pressure is already over the limit, does that mean we return true even though the register class in question might be floating point?


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D150671/new/

https://reviews.llvm.org/D150671