[llvm] [RISCV] Add some compress patterns for Xqci instructions (PR #139273)

[Sam Elliott via llvm-commits]

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@@ -1407,3 +1407,35 @@ let Predicates = [HasVendorXqcibm, IsRV32] in {
 def : CompressPat<(QC_EXTU GPRNoX0:$rd, GPRNoX0:$rd, uimm5ge6_plus1:$width, 0),
                   (QC_C_EXTU GPRNoX0:$rd, uimm5ge6_plus1:$width)>;
 }
+
+let Predicates = [HasVendorXqcibm, HasStdExtZbs, IsRV32] in {
+def : CompressPat<(BSETI GPRC:$rs1, GPRC:$rs1, uimmlog2xlennonzero:$shamt),
+                  (QC_C_BSETI GPRC:$rs1, uimmlog2xlennonzero:$shamt)>;
+def : CompressPat<(BEXTI GPRC:$rs1, GPRC:$rs1, uimmlog2xlennonzero:$shamt),
+                  (QC_C_BEXTI GPRC:$rs1, uimmlog2xlennonzero:$shamt)>;
+} // Predicates = [HasVendorXqcibm, HasStdExtZbs, IsRV32]
+
+let Predicates = [HasVendorXqcilb, IsRV32] in {
+def : CompressPat<(QC_E_J bare_simm12_lsb0:$offset),
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lenary wrote:

This should maybe also be is isCompressOnly too?

https://github.com/llvm/llvm-project/pull/139273