diff --git a/llvm/lib/Target/RISCV/RISCVInstrInfoZb.td b/llvm/lib/Target/RISCV/RISCVInstrInfoZb.td
--- a/llvm/lib/Target/RISCV/RISCVInstrInfoZb.td
+++ b/llvm/lib/Target/RISCV/RISCVInstrInfoZb.td
@@ -524,15 +524,19 @@
 let Predicates = [HasStdExtZbe] in {
 // NOTE: These mnemonics are from the 0.94 spec. There is a name conflict with
 // bext in the 0.93 spec.
-def BDECOMPRESS : ALU_rr<0b0100100, 0b110, "bdecompress">, Sched<[]>;
-def BCOMPRESS   : ALU_rr<0b0000100, 0b110, "bcompress">, Sched<[]>;
+def BDECOMPRESS : ALU_rr<0b0100100, 0b110, "bdecompress">,
+                  Sched<[WriteDecompress, ReadDecompress, ReadDecompress]>;
+def BCOMPRESS   : ALU_rr<0b0000100, 0b110, "bcompress">,
+                  Sched<[WriteCompress, ReadCompress, ReadCompress]>;
 } // Predicates = [HasStdExtZbe]
 
 let Predicates = [HasStdExtZbe, IsRV64] in {
 // NOTE: These mnemonics are from the 0.94 spec. There is a name conflict with
 // bextw in the 0.93 spec.
-def BDECOMPRESSW : ALUW_rr<0b0100100, 0b110, "bdecompressw">, Sched<[]>;
-def BCOMPRESSW   : ALUW_rr<0b0000100, 0b110, "bcompressw">, Sched<[]>;
+def BDECOMPRESSW : ALUW_rr<0b0100100, 0b110, "bdecompressw">,
+                   Sched<[WriteDecompress32, ReadDecompress32, ReadDecompress32]>;
+def BCOMPRESSW   : ALUW_rr<0b0000100, 0b110, "bcompressw">,
+                   Sched<[WriteCompress32, ReadCompress32, ReadCompress32]>;
 } // Predicates = [HasStdExtZbe, IsRV64]
 
 let Predicates = [HasStdExtZbpOrZbkb] in {
@@ -551,10 +555,12 @@
 
 let Predicates = [HasStdExtZbm, IsRV64] in {
 def BMATFLIP : RVBUnary<0b0110000, 0b00011, 0b001, OPC_OP_IMM, "bmatflip">,
-               Sched<[]>;
+               Sched<[WriteBMatrix, ReadBMatrix]>;
 
-def BMATOR   : ALU_rr<0b0000100, 0b011, "bmator">, Sched<[]>;
-def BMATXOR  : ALU_rr<0b0100100, 0b011, "bmatxor">, Sched<[]>;
+def BMATOR   : ALU_rr<0b0000100, 0b011, "bmator">,
+               Sched<[WriteBMatrix, ReadBMatrix, ReadBMatrix]>;
+def BMATXOR  : ALU_rr<0b0100100, 0b011, "bmatxor">,
+               Sched<[WriteBMatrix, ReadBMatrix, ReadBMatrix]>;
 } // Predicates = [HasStdExtZbm, IsRV64]
 
 let Predicates = [HasStdExtZbf] in
diff --git a/llvm/lib/Target/RISCV/RISCVSchedRocket.td b/llvm/lib/Target/RISCV/RISCVSchedRocket.td
--- a/llvm/lib/Target/RISCV/RISCVSchedRocket.td
+++ b/llvm/lib/Target/RISCV/RISCVSchedRocket.td
@@ -242,6 +242,8 @@
 defm : UnsupportedSchedZbb;
 defm : UnsupportedSchedZbc;
 defm : UnsupportedSchedZbs;
+defm : UnsupportedSchedZbe;
 defm : UnsupportedSchedZbf;
+defm : UnsupportedSchedZbm;
 defm : UnsupportedSchedZfh;
 }
diff --git a/llvm/lib/Target/RISCV/RISCVSchedSiFive7.td b/llvm/lib/Target/RISCV/RISCVSchedSiFive7.td
--- a/llvm/lib/Target/RISCV/RISCVSchedSiFive7.td
+++ b/llvm/lib/Target/RISCV/RISCVSchedSiFive7.td
@@ -229,6 +229,8 @@
 defm : UnsupportedSchedZbb;
 defm : UnsupportedSchedZbc;
 defm : UnsupportedSchedZbs;
+defm : UnsupportedSchedZbe;
 defm : UnsupportedSchedZbf;
+defm : UnsupportedSchedZbm;
 defm : UnsupportedSchedZfh;
 }
diff --git a/llvm/lib/Target/RISCV/RISCVScheduleB.td b/llvm/lib/Target/RISCV/RISCVScheduleB.td
--- a/llvm/lib/Target/RISCV/RISCVScheduleB.td
+++ b/llvm/lib/Target/RISCV/RISCVScheduleB.td
@@ -33,10 +33,19 @@
 def WriteSingleBit   : SchedWrite; // BCLR/BSET/BINV/BEXT
 def WriteSingleBitImm: SchedWrite; // BCLRI/BSETI/BINVI/BEXTI
 
+// Zbe extension
+def WriteDecompress  : SchedWrite; // bdecompress
+def WriteCompress    : SchedWrite; // bcompress
+def WriteDecompress32: SchedWrite; // bdecompressw
+def WriteCompress32  : SchedWrite; // bcompressw
+
 // Zbf extension
 def WriteBFP         : SchedWrite; // BFP
 def WriteBFP32       : SchedWrite; // BFPW
 
+// Zbm extension
+def WriteBMatrix     : SchedWrite; // bmator/bmatxor/bmatflip
+
 /// Define scheduler resources associated with use operands.
 
 // Zba extension
@@ -64,10 +73,19 @@
 def ReadSingleBit   : SchedRead; // BCLR/BSET/BINV/BEXT
 def ReadSingleBitImm: SchedRead; // BCLRI/BSETI/BINVI/BEXTI
 
+// Zbe extension
+def ReadDecompress  : SchedRead; // bdecompress
+def ReadCompress    : SchedRead; // bcompress
+def ReadDecompress32: SchedRead; // bdecompressw
+def ReadCompress32  : SchedRead; // bcompressw
+
 // Zbf extension
 def ReadBFP         : SchedRead; // BFP
 def ReadBFP32       : SchedRead; // BFPW
 
+// Zbm extension
+def ReadBMatrix     : SchedRead; // bmator/bmatxor/bmatflip
+
 /// Define default scheduler resources for B.
 
 multiclass UnsupportedSchedZba {
@@ -128,6 +146,20 @@
 }
 }
 
+multiclass UnsupportedSchedZbe {
+let Unsupported = true in {
+def : WriteRes<WriteDecompress, []>;
+def : WriteRes<WriteCompress, []>;
+def : WriteRes<WriteDecompress32, []>;
+def : WriteRes<WriteCompress32, []>;
+
+def : ReadAdvance<ReadDecompress, 0>;
+def : ReadAdvance<ReadCompress, 0>;
+def : ReadAdvance<ReadDecompress32, 0>;
+def : ReadAdvance<ReadCompress32, 0>;
+}
+}
+
 multiclass UnsupportedSchedZbf {
 let Unsupported = true in {
 def : WriteRes<WriteBFP, []>;
@@ -137,3 +169,11 @@
 def : ReadAdvance<ReadBFP32, 0>;
 }
 }
+
+multiclass UnsupportedSchedZbm {
+let Unsupported = true in {
+def : WriteRes<WriteBMatrix, []>;
+
+def : ReadAdvance<ReadBMatrix, 0>;
+}
+}