[llvm] [BOLT][RISCV] Set minimum function alignment to 2 for RVC (PR #69837)

[Job Noorman via llvm-commits]

================
@@ -490,6 +491,10 @@ class RISCVMCPlusBuilder : public MCPlusBuilder {
     assert(Second.getOpcode() == RISCV::JALR);
     return true;
   }
+
+  uint16_t getMinFunctionAlignment() const override {
+    return STI->getFeatureBits()[RISCV::FeatureStdExtC] ? 2 : 4;
----------------
mtvec wrote:

Thanks for that @asb, `hasFeature` indeed makes the code clearer. Updated and added Zca.

https://github.com/llvm/llvm-project/pull/69837