[PATCH] D48411: [RISCV] Add support for _interrupt attribute

[Ana Pazos via Phabricator via llvm-commits]

apazos added inline comments.


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Comment at: lib/Target/RISCV/RISCVCallingConv.td:31
+// unconditionally save all Caller saved registers.
+def CSR_Interrupt_With_Call :  CalleeSavedRegs<(add X1, X3, X4, X5, X6, X7,
+    (sequence "X%u", 10, 17),
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Note that CSR_Interrupt_With_Call is only used to provide a list of registers that need to be unconditionally saved. It is not used by
getCalleeSavedRegs nor getCallPreservedMask. Maybe the reuse of the class CalleeSavedRegs is confusing? I wanted to avoid listing each register in RISCVFrameLowering::determineCalleeSave. 


https://reviews.llvm.org/D48411