[llvm] [RISCV] Implement Intrinsics Support for XCValu Extension in CV32E40P (PR #85603)

[Craig Topper via llvm-commits]

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@@ -704,3 +749,51 @@ let Predicates = [HasVendorXCVbitmanip, IsRV32] in {
             (CV_BITREV GPR:$rs1, cv_tuimm2:$radix, cv_tuimm5:$pts)>;
   def : Pat<(bitreverse (XLenVT GPR:$rs)), (CV_BITREV GPR:$rs, 0, 0)>;
 }
+
+class PatCoreVAluGpr <string intr, string asm> :
+  PatGpr<!cast<Intrinsic>("int_riscv_cv_alu_" # intr),
+            !cast<RVInst>("CV_" # asm)>;
+class PatCoreVAluGprGpr <string intr, string asm> :
+  PatGprGpr<!cast<Intrinsic>("int_riscv_cv_alu_" # intr),
+               !cast<RVInst>("CV_" # asm)>;
+
+multiclass PatCoreVAluGprImm <Intrinsic intr> {
+  def : PatGprGpr<intr, !cast<RVInst>("CV_" # NAME # "R")>;
+  def : Pat<(intr (XLenVT GPR:$rs1), powerOf2Minus1:$upperBound),
+            (!cast<RVInst>("CV_" # NAME) GPR:$rs1,
+            (trailing1sPlus1 imm:$upperBound))>;
+}
+
+multiclass PatCoreVAluGprGprImm <Intrinsic intr> {
+  def : Pat<(intr GPR:$rs1, GPR:$rs2, GPR:$rs3),
+            (!cast<RVInst>("CV_" # NAME # "R") GPR:$rs1, GPR:$rs2, GPR:$rs3)>;
+  def : Pat<(intr GPR:$rs1, GPR:$rs2, uimm5:$imm),
+            (!cast<RVInst>("CV_" # NAME) GPR:$rs1, GPR:$rs2, uimm5:$imm)>;
+}
+
+let Predicates = [HasVendorXCValu, IsRV32], AddedComplexity = 1 in {
+  def : PatGpr<abs, CV_ABS>;
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topperc wrote:

I don't see tests for these

https://github.com/llvm/llvm-project/pull/85603