[PATCH] D6229: [mips][microMIPS] Use swm32/lwm32 instructions in function prologue/epilogue

[Simon Atanasyan via Phabricator via llvm-commits]

atanasyan added inline comments.


================
Comment at: lib/Target/Mips/MipsSEFrameLowering.cpp:683
+                            const TargetRegisterInfo *TRI) const {
+  if (STI.inMicroMipsMode()) {
+    unsigned sregs[] = {Mips::S0, Mips::S1, Mips::S2, Mips::S3, Mips::S4,
----------------
Use early-return:
```
if (!STI.inMicroMipsMode())
    return false;
```


================
Comment at: lib/Target/Mips/MipsSEFrameLowering.cpp:707
+      if (FirstIndx >= 0 && (Multi == false || i == 0)) {
+        // Emit SWM instruction.
+        int Count = FirstIndx - i;
----------------
Replace SWM by LWM.


https://reviews.llvm.org/D6229