================
@@ -74,6 +74,21 @@ let TargetPrefix = "riscv" in {
} // TargetPrefix = "riscv"
+let TargetPrefix = "riscv" in {
+ // Zicsr
+ def int_riscv_csrr :
+ DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty],
+ [IntrNoMem, IntrHasSideEffects,
ImmArg<ArgIndex<0>>]>;
+ def int_riscv_csrr64 :
+ DefaultAttrsIntrinsic<[llvm_i64_ty], [llvm_i64_ty],
+ [IntrNoMem, IntrHasSideEffects,
ImmArg<ArgIndex<0>>]>;
+ def int_riscv_csrw :
+ DefaultAttrsIntrinsic<[], [llvm_i32_ty, llvm_i32_ty],
+ [IntrNoMem, IntrHasSideEffects,
ImmArg<ArgIndex<0>>]>;
+ def int_riscv_csrw64 :
+ DefaultAttrsIntrinsic<[], [llvm_i64_ty, llvm_i64_ty],
+ [IntrNoMem, IntrHasSideEffects,
ImmArg<ArgIndex<0>>]>;
+} // TargetPrefix = "riscv"
----------------
nemanjai wrote:
TBH, I only implemented these two initially for 2 reasons
1. The user that requested them only needs these for now
2. To validate the approach with the community
I think ultimately, we could provide read, write, set, clear and swap (and
handle producing the immediate forms if the operand allows it).
https://github.com/llvm/llvm-project/pull/85091
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