llvmbot wrote:

<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang-driver

Author: None (realqhc)

<details>
<summary>Changes</summary>

This patch supports RV32/64 extension instructions. The final patch split from 
the original pull request will add RV32 Only instructions with register pair 
operands.

Documentation:
https://jhauser.us/RISCV/ext-P/RVP-baseInstrs-014.pdf
https://jhauser.us/RISCV/ext-P/RVP-instrEncodings-015.pdf

---

Patch is 39.86 KiB, truncated to 20.00 KiB below, full version: 
https://github.com/llvm/llvm-project/pull/150379.diff


7 Files Affected:

- (modified) clang/test/Driver/print-supported-extensions-riscv.c (+1-1) 
- (modified) llvm/lib/Target/RISCV/RISCVFeatures.td (+1-1) 
- (modified) llvm/lib/Target/RISCV/RISCVInstrInfoP.td (+201) 
- (modified) llvm/test/MC/RISCV/attribute-arch.s (+4-4) 
- (modified) llvm/test/MC/RISCV/rv32p-valid.s (+275) 
- (modified) llvm/test/MC/RISCV/rv64p-valid.s (+399) 
- (modified) llvm/unittests/TargetParser/RISCVISAInfoTest.cpp (+1-1) 


``````````diff
diff --git a/clang/test/Driver/print-supported-extensions-riscv.c 
b/clang/test/Driver/print-supported-extensions-riscv.c
index 2503f2473d64a..2e4d7cfa82c80 100644
--- a/clang/test/Driver/print-supported-extensions-riscv.c
+++ b/clang/test/Driver/print-supported-extensions-riscv.c
@@ -207,7 +207,7 @@
 // CHECK-NEXT:     xwchc                2.2       'Xwchc' (WCH/QingKe 
additional compressed opcodes)
 // CHECK-EMPTY:
 // CHECK-NEXT: Experimental extensions
-// CHECK-NEXT:     p                    0.14      'P' ('Base P' (Packed SIMD))
+// CHECK-NEXT:     p                    0.15      'P' ('Base P' (Packed SIMD))
 // CHECK-NEXT:     zicfilp              1.0       'Zicfilp' (Landing pad)
 // CHECK-NEXT:     zicfiss              1.0       'Zicfiss' (Shadow stack)
 // CHECK-NEXT:     zalasr               0.1       'Zalasr' (Load-Acquire and 
Store-Release Instructions)
diff --git a/llvm/lib/Target/RISCV/RISCVFeatures.td 
b/llvm/lib/Target/RISCV/RISCVFeatures.td
index a7329d201f880..2163b063610af 100644
--- a/llvm/lib/Target/RISCV/RISCVFeatures.td
+++ b/llvm/lib/Target/RISCV/RISCVFeatures.td
@@ -1069,7 +1069,7 @@ def HasStdExtSmctrOrSsctr : 
Predicate<"Subtarget->hasStdExtSmctrOrSsctr()">,
 
 // Packed SIMD Extensions
 def FeatureStdExtP
-    : RISCVExperimentalExtension<0, 14,
+    : RISCVExperimentalExtension<0, 15,
                                  "'Base P' (Packed SIMD)">;
 def HasStdExtP : Predicate<"Subtarget->hasStdExtP()">,
                  AssemblerPredicate<(all_of FeatureStdExtP),
diff --git a/llvm/lib/Target/RISCV/RISCVInstrInfoP.td 
b/llvm/lib/Target/RISCV/RISCVInstrInfoP.td
index e67417035963a..9e19ffb00c9ab 100644
--- a/llvm/lib/Target/RISCV/RISCVInstrInfoP.td
+++ b/llvm/lib/Target/RISCV/RISCVInstrInfoP.td
@@ -559,3 +559,204 @@ let Predicates = [HasStdExtP, IsRV64] in {
   def PPACKT_W    : RVPBinary_rr<0b0110, 0b01, 0b100, "ppackt.w">;
   def PACKT_RV64  : RVPBinary_rr<0b0110, 0b11, 0b100, "packt">;
 } // Predicates = [HasStdExtP, IsRV64]
+let Predicates = [HasStdExtP] in {
+  def PM2ADD_H    : RVPBinary_rr<0b0000, 0b00, 0b101, "pm2add.h">;
+  def PM4ADD_B    : RVPBinary_rr<0b0000, 0b10, 0b101, "pm4add.b">;
+  def PM2ADDA_H   : RVPBinary_rr<0b0001, 0b00, 0b101, "pm2adda.h">;
+  def PM4ADDA_B   : RVPBinary_rr<0b0001, 0b10, 0b101, "pm4adda.b">;
+  def PM2ADD_HX   : RVPBinary_rr<0b0010, 0b00, 0b101, "pm2add.hx">;
+  def PM2ADDA_HX  : RVPBinary_rr<0b0011, 0b00, 0b101, "pm2adda.hx">;
+
+  def PM2ADDU_H   : RVPBinary_rr<0b0100, 0b00, 0b101, "pm2addu.h">;
+  def PM4ADDU_B   : RVPBinary_rr<0b0100, 0b10, 0b101, "pm4addu.b">;
+  def PM2ADDAU_H  : RVPBinary_rr<0b0101, 0b00, 0b101, "pm2addau.h">;
+  def PM4ADDAU_B  : RVPBinary_rr<0b0101, 0b10, 0b101, "pm4addau.b">;
+  def PMQ2ADD_H   : RVPBinary_rr<0b0110, 0b00, 0b101, "pmq2add.h">;
+  def PMQR2ADD_H  : RVPBinary_rr<0b0110, 0b10, 0b101, "pmqr2add.h">;
+  def PMQ2ADDA_H  : RVPBinary_rr<0b0111, 0b00, 0b101, "pmq2adda.h">;
+  def PMQR2ADDA_H : RVPBinary_rr<0b0111, 0b10, 0b101, "pmqr2adda.h">;
+
+  def PM2SUB_H    : RVPBinary_rr<0b1000, 0b00, 0b101, "pm2sub.h">;
+  def PM2SADD_H   : RVPBinary_rr<0b1000, 0b10, 0b101, "pm2sadd.h">;
+  def PM2SUBA_H   : RVPBinary_rr<0b1001, 0b00, 0b101, "pm2suba.h">;
+  def PM2SUB_HX   : RVPBinary_rr<0b1010, 0b00, 0b101, "pm2sub.hx">;
+  def PM2SADD_HX  : RVPBinary_rr<0b1010, 0b10, 0b101, "pm2sadd.hx">;
+  def PM2SUBA_HX  : RVPBinary_rr<0b1011, 0b00, 0b101, "pm2suba.hx">;
+  
+  def PM2ADDSU_H  : RVPBinary_rr<0b1100, 0b00, 0b101, "pm2addsu.h">;
+  def PM4ADDSU_B  : RVPBinary_rr<0b1100, 0b10, 0b101, "pm4addsu.b">;
+  def PM2ADDASU_H : RVPBinary_rr<0b1101, 0b00, 0b101, "pm2addasu.h">;
+  def PM4ADDASU_B : RVPBinary_rr<0b1101, 0b10, 0b101, "pm4addasu.b">;
+} // Predicates = [HasStdExtP]
+let Predicates = [HasStdExtP, IsRV32], DecoderNamespace = "RV32Only" in {
+  def MQACC_H01  : RVPBinary_rr<0b1111, 0b00, 0b101, "mqacc.h01">;
+  def MQRACC_H01 : RVPBinary_rr<0b1111, 0b10, 0b101, "mqracc.h01">;
+} // // Predicates = [HasStdExtP, IsRV32], DecoderNamespace = "RV32Only"
+let Predicates = [HasStdExtP, IsRV64] in {
+  def PM2ADD_W      : RVPBinary_rr<0b0000, 0b01, 0b101, "pm2add.w">;
+  def PM4ADD_H      : RVPBinary_rr<0b0000, 0b11, 0b101, "pm4add.h">;
+  def PM2ADDA_W     : RVPBinary_rr<0b0001, 0b01, 0b101, "pm2adda.w">;
+  def PM4ADDA_H     : RVPBinary_rr<0b0001, 0b11, 0b101, "pm4adda.h">;
+  def PM2ADD_WX     : RVPBinary_rr<0b0010, 0b01, 0b101, "pm2add.wx">;
+  def PM2ADDA_WX    : RVPBinary_rr<0b0011, 0b01, 0b101, "pm2adda.wx">;
+
+  def PM2ADDU_W     : RVPBinary_rr<0b0100, 0b01, 0b101, "pm2addu.w">;
+  def PM4ADDU_H     : RVPBinary_rr<0b0100, 0b11, 0b101, "pm4addu.h">;
+  def PM2ADDAU_W    : RVPBinary_rr<0b0101, 0b01, 0b101, "pm2addau.w">;
+  def PM4ADDAU_H    : RVPBinary_rr<0b0101, 0b11, 0b101, "pm4addau.h">;
+  def PMQ2ADD_W     : RVPBinary_rr<0b0110, 0b01, 0b101, "pmq2add.w">;
+  def PMQR2ADD_W    : RVPBinary_rr<0b0110, 0b11, 0b101, "pmqr2add.w">;
+  def PMQ2ADDA_W    : RVPBinary_rr<0b0111, 0b01, 0b101, "pmq2adda.w">;
+  def PMQR2ADDA_W   : RVPBinary_rr<0b0111, 0b11, 0b101, "pmqr2adda.w">;
+
+  def PM2SUB_W      : RVPBinary_rr<0b1000, 0b01, 0b101, "pm2sub.w">;
+  def PM2SUBA_W     : RVPBinary_rr<0b1001, 0b01, 0b101, "pm2suba.w">;
+  def PM2SUB_WX     : RVPBinary_rr<0b1010, 0b01, 0b101, "pm2sub.wx">;
+  def PM2SUBA_WX    : RVPBinary_rr<0b1011, 0b01, 0b101, "pm2suba.wx">;
+
+  def PM2ADDSU_W    : RVPBinary_rr<0b1100, 0b01, 0b101, "pm2addsu.w">;
+  def PM4ADDSU_H    : RVPBinary_rr<0b1100, 0b11, 0b101, "pm4addsu.h">;
+  def PM2ADDASU_W   : RVPBinary_rr<0b1101, 0b01, 0b101, "pm2addasu.w">;
+  def PM4ADDASU_H   : RVPBinary_rr<0b1101, 0b11, 0b101, "pm4addasu.h">;
+
+  def PMQACC_W_H01  : RVPBinary_rr<0b1111, 0b00, 0b101, "pmqacc.w.h01">;
+  def MQACC_W01     : RVPBinary_rr<0b1111, 0b01, 0b101, "mqacc.w01">;
+  def PMQRACC_W_H01 : RVPBinary_rr<0b1111, 0b10, 0b101, "pmqracc.w.h01">;
+  def MQRACC_W01    : RVPBinary_rr<0b1111, 0b11, 0b101, "mqracc.w01">;
+} // Predicates = [HasStdExtP, IsRV64]
+let Predicates = [HasStdExtP] in {
+  def PAS_HX   : RVPBinary_rr<0b0000, 0b00, 0b110, "pas.hx">;
+  def PSA_HX   : RVPBinary_rr<0b0000, 0b10, 0b110, "psa.hx">;
+  def PSAS_HX  : RVPBinary_rr<0b0010, 0b00, 0b110, "psas.hx">;
+  def PSSA_HX  : RVPBinary_rr<0b0010, 0b10, 0b110, "pssa.hx">;
+
+  def PMSEQ_H  : RVPBinary_rr<0b1000, 0b00, 0b110, "pmseq.h">;
+  def PMSEQ_B  : RVPBinary_rr<0b1000, 0b10, 0b110, "pmseq.b">;
+  def PMSLT_H  : RVPBinary_rr<0b1010, 0b00, 0b110, "pmslt.h">;
+  def PMSLT_B  : RVPBinary_rr<0b1010, 0b10, 0b110, "pmslt.b">;
+  def PMSLTU_H : RVPBinary_rr<0b1011, 0b00, 0b110, "pmsltu.h">;
+  def PMSLTU_B : RVPBinary_rr<0b1011, 0b10, 0b110, "pmsltu.b">;
+
+  def PMIN_H   : RVPBinary_rr<0b1100, 0b00, 0b110, "pmin.h">;
+  def PMIN_B   : RVPBinary_rr<0b1100, 0b10, 0b110, "pmin.b">;
+  def PMINU_H  : RVPBinary_rr<0b1101, 0b00, 0b110, "pminu.h">;
+  def PMINU_B  : RVPBinary_rr<0b1101, 0b10, 0b110, "pminu.b">;
+  def PMAX_H   : RVPBinary_rr<0b1110, 0b00, 0b110, "pmax.h">;
+  def PMAX_B   : RVPBinary_rr<0b1110, 0b10, 0b110, "pmax.b">;
+  def PMAXU_H  : RVPBinary_rr<0b1111, 0b00, 0b110, "pmaxu.h">;
+  def PMAXU_B  : RVPBinary_rr<0b1111, 0b10, 0b110, "pmaxu.b">;
+} // Predicates = [HasStdExtP]
+let Predicates = [HasStdExtP, IsRV32], DecoderNamespace = "RV32Only" in {
+  def MSEQ  : RVPBinary_rr<0b1000, 0b01, 0b110, "mseq">;
+  def MSLT  : RVPBinary_rr<0b1010, 0b01, 0b110, "mslt">;
+  def MSLTU : RVPBinary_rr<0b1011, 0b01, 0b110, "msltu">;
+} // Predicates = [HasStdExtP, IsRV32], DecoderNamespace = "RV32Only"
+let Predicates = [HasStdExtP, IsRV64] in {
+  def PAS_WX   : RVPBinary_rr<0b0000, 0b01, 0b110, "pas.wx">;
+  def PSA_WX   : RVPBinary_rr<0b0000, 0b11, 0b110, "psa.wx">;
+  def PSAS_WX  : RVPBinary_rr<0b0010, 0b01, 0b110, "psas.wx">;
+  def PSSA_WX  : RVPBinary_rr<0b0010, 0b11, 0b110, "pssa.wx">;
+  def PAAS_WX  : RVPBinary_rr<0b0011, 0b01, 0b110, "paas.wx">;
+  def PASA_WX  : RVPBinary_rr<0b0011, 0b11, 0b110, "pasa.wx">;
+
+  def PMSEQ_W  : RVPBinary_rr<0b1000, 0b01, 0b110, "pmseq.w">;
+  def PMSLT_W  : RVPBinary_rr<0b1010, 0b01, 0b110, "pmslt.w">;
+  def PMSLTU_W : RVPBinary_rr<0b1011, 0b01, 0b110, "pmsltu.w">;
+
+  def PMIN_W   : RVPBinary_rr<0b1100, 0b01, 0b110, "pmin.w">;
+  def PMINU_W  : RVPBinary_rr<0b1101, 0b01, 0b110, "pminu.w">;
+  def PMAX_W   : RVPBinary_rr<0b1110, 0b01, 0b110, "pmax.w">;
+  def PMAXU_W  : RVPBinary_rr<0b1111, 0b01, 0b110, "pmaxu.w">;
+} // Predicates = [HasStdExtP, IsRV64]
+
+
+let Predicates = [HasStdExtP] in {
+  def PMULH_H      : RVPBinary_rr<0b0000, 0b00, 0b111, "pmulh.h">;
+  def PMULHR_H     : RVPBinary_rr<0b0000, 0b10, 0b111, "pmulhr.h">;
+  def PMHACC_H     : RVPBinary_rr<0b0001, 0b00, 0b111, "pmhacc.h">;
+  def PMHRACC_H    : RVPBinary_rr<0b0001, 0b10, 0b111, "pmhracc.h">;
+  def PMULHU_H     : RVPBinary_rr<0b0010, 0b00, 0b111, "pmulhu.h">;
+  def PMULHRU_H    : RVPBinary_rr<0b0010, 0b10, 0b111, "pmulhru.h">;
+  def PMHACCU_H    : RVPBinary_rr<0b0011, 0b00, 0b111, "pmhaccu.h">;
+  def PMHRACCU_H   : RVPBinary_rr<0b0011, 0b10, 0b111, "pmhraccu.h">;
+
+  def PMULH_H_B0    : RVPBinary_rr<0b0100, 0b00, 0b111, "pmulh.h.b0">;
+  def PMULHSU_H_B0  : RVPBinary_rr<0b0100, 0b10, 0b111, "pmulhsu.h.b0">;
+  def PMHACCU_H_B0  : RVPBinary_rr<0b0101, 0b00, 0b111, "pmhaccu.h.b0">;
+  def PMHACCSU_H_B0 : RVPBinary_rr<0b0101, 0b10, 0b111, "pmhaccsu.h.b0">;
+  def PMULH_H_B1    : RVPBinary_rr<0b0110, 0b00, 0b111, "pmulh.h.b1">;
+  def PMULHSU_H_B1  : RVPBinary_rr<0b0110, 0b10, 0b111, "pmulhsu.h.b1">;
+  def PMHACC_H_B1   : RVPBinary_rr<0b0111, 0b00, 0b111, "pmhacc.h.b1">;
+  def PMHACCSU_H_B1 : RVPBinary_rr<0b0111, 0b10, 0b111, "pmhaccsu.h.b1">;
+
+  def PMULHSU_H     : RVPBinary_rr<0b1000, 0b00, 0b111, "pmulhsu.h">;
+  def PMULHRSU_H    : RVPBinary_rr<0b1000, 0b10, 0b111, "pmulhrsu.h">;
+  def PMHACCSU_H    : RVPBinary_rr<0b1001, 0b00, 0b111, "pmhaccsu.h">;
+  def PMHRACCSU_H   : RVPBinary_rr<0b1001, 0b10, 0b111, "pmhraccsu.h">;
+  def PMULQ_H       : RVPBinary_rr<0b1010, 0b00, 0b111, "pmulq.h">;
+  def PMULQR_H      : RVPBinary_rr<0b1010, 0b10, 0b111, "pmulqr.h">;
+} // Predicates = [HasStdExtP]
+
+let Predicates = [HasStdExtP, IsRV32], DecoderNamespace = "RV32Only" in {
+  def MULHR      : RVPBinary_rr<0b0000, 0b11, 0b111, "mulhr">;
+  def MHACC      : RVPBinary_rr<0b0001, 0b01, 0b111, "mhacc">;
+  def MHRACC     : RVPBinary_rr<0b0001, 0b11, 0b111, "mhracc">;
+  def MULHRU     : RVPBinary_rr<0b0010, 0b11, 0b111, "mulhru">;
+  def MHACCU     : RVPBinary_rr<0b0011, 0b01, 0b111, "mhaccu">;
+  def MHRACCU    : RVPBinary_rr<0b0011, 0b11, 0b111, "mhraccu">;
+
+  def MULH_H0    : RVPBinary_rr<0b0100, 0b01, 0b111, "mulh.h0">;
+  def MULHSU_H0  : RVPBinary_rr<0b0100, 0b11, 0b111, "mulhsu.h0">;
+  def MHACC_H0   : RVPBinary_rr<0b0101, 0b01, 0b111, "mhacc.h0">;
+  def MHACCSU_H0 : RVPBinary_rr<0b0101, 0b11, 0b111, "mhaccsu.h0">;
+  def MULH_H1    : RVPBinary_rr<0b0110, 0b01, 0b111, "mulh.h1">;
+  def MULHSU_H1  : RVPBinary_rr<0b0110, 0b11, 0b111, "mulhsu.h1">;
+  def MHACC_H1   : RVPBinary_rr<0b0111, 0b01, 0b111, "mhacc.h1">;
+  def MHACCSU_H1 : RVPBinary_rr<0b0111, 0b11, 0b111, "mhaccsu.h1">;
+
+  def MULHRSU_H  : RVPBinary_rr<0b1000, 0b11, 0b111, "mulhrsu.h">;
+  def MHACCSU    : RVPBinary_rr<0b1001, 0b01, 0b111, "mhaccsu">;
+  def MHRACCSU   : RVPBinary_rr<0b1001, 0b11, 0b111, "mhraccsu">;
+  def MULQ       : RVPBinary_rr<0b1010, 0b01, 0b111, "mulq">;
+  def MULQR      : RVPBinary_rr<0b1010, 0b11, 0b111, "mulqr">;
+
+  def MQACC_H00  : RVPBinary_rr<0b1101, 0b00, 0b111, "mqacc.h00">;
+  def MQRACC_H00 : RVPBinary_rr<0b1101, 0b10, 0b111, "mqracc.h00">;
+  def MQACC_H11  : RVPBinary_rr<0b1111, 0b00, 0b111, "mqacc.h11">;
+  def MQRACC_H11 : RVPBinary_rr<0b1111, 0b10, 0b111, "mqracc.h11">;
+} // Predicates = [HasStdExtP, IsRV32], DecoderNamespace = "RV32Only" in
+let Predicates = [HasStdExtP, IsRV64] in {
+  def PMULH_W       : RVPBinary_rr<0b0000, 0b01, 0b111, "pmulh.w">;
+  def PMULHR_W      : RVPBinary_rr<0b0000, 0b11, 0b111, "pmulhr.w">;
+  def PMHACC_W      : RVPBinary_rr<0b0001, 0b01, 0b111, "pmhacc.w">;
+  def PMHRACC_W     : RVPBinary_rr<0b0001, 0b11, 0b111, "pmhracc.w">;
+  def PMULHU_W      : RVPBinary_rr<0b0010, 0b01, 0b111, "pmulhu.w">;
+  def PMULHRU_W     : RVPBinary_rr<0b0010, 0b11, 0b111, "pmulhru.w">;
+  def PMHACCU_W     : RVPBinary_rr<0b0011, 0b01, 0b111, "pmhaccu.w">;
+  def PMHRACCU_W    : RVPBinary_rr<0b0011, 0b11, 0b111, "pmhraccu.w">;
+
+  def PMULH_W_H0    : RVPBinary_rr<0b0100, 0b01, 0b111, "pmulh.w.h0">;
+  def PMULHSU_W_H0  : RVPBinary_rr<0b0100, 0b11, 0b111, "pmulhsu.w.h0">;
+  def PMHACC_W_H0   : RVPBinary_rr<0b0101, 0b01, 0b111, "pmhacc.w.h0">;
+  def PMHACCSU_W_H0 : RVPBinary_rr<0b0101, 0b11, 0b111, "pmhaccsu.w.h0">;
+  def PMULH_W_H1    : RVPBinary_rr<0b0110, 0b01, 0b111, "pmulh.w.h1">;
+  def PMULHSU_W_H1  : RVPBinary_rr<0b0110, 0b11, 0b111, "pmulhsu.w.h1">;
+  def PMHACC_W_H1   : RVPBinary_rr<0b0111, 0b01, 0b111, "pmhacc.w.h1">;
+  def PMHACCSU_W_H1 : RVPBinary_rr<0b0111, 0b11, 0b111, "pmhaccsu.w.h1">;
+
+  def PMULHSU_W    : RVPBinary_rr<0b1000, 0b01, 0b111, "pmulhsu.w">;
+  def PMULHRSU_W   : RVPBinary_rr<0b1000, 0b11, 0b111, "pmulhrsu.w">;
+  def PMHACCSU_W   : RVPBinary_rr<0b1001, 0b01, 0b111, "pmhaccsu.w">;
+  def PMHRACCSU_W  : RVPBinary_rr<0b1001, 0b11, 0b111, "pmhraccsu.w">;
+  def PMULQ_W      : RVPBinary_rr<0b1010, 0b01, 0b111, "pmulq.w">;
+  def PMULQR_W     : RVPBinary_rr<0b1010, 0b11, 0b111, "pmulqr.w">;
+
+  def PMQACC_W_H00  : RVPBinary_rr<0b1101, 0b00, 0b111, "pmqacc.w.h00">;
+  def MQACC_W00     : RVPBinary_rr<0b1101, 0b01, 0b111, "mqacc.w00">;
+  def PMQRACC_W_H00 : RVPBinary_rr<0b1101, 0b10, 0b111, "pmqracc.w.h00">;
+  def MQRACC_W00    : RVPBinary_rr<0b1101, 0b11, 0b111, "mqracc.w00">;
+  def PMQACC_W_H11  : RVPBinary_rr<0b1111, 0b00, 0b111, "pmqacc.w.h11">;
+  def MQACC_W11     : RVPBinary_rr<0b1111, 0b01, 0b111, "mqacc.w11">;
+  def PMQRACC_W_H11 : RVPBinary_rr<0b1111, 0b10, 0b111, "pmqracc.w.h11">;
+  def MQRACC_W11    : RVPBinary_rr<0b1111, 0b11, 0b111, "mqracc.w11">;
+} // Predicates = [HasStdExtP, IsRV64]
\ No newline at end of file
diff --git a/llvm/test/MC/RISCV/attribute-arch.s 
b/llvm/test/MC/RISCV/attribute-arch.s
index 19cc4d5ba1675..03a8957b5b5ca 100644
--- a/llvm/test/MC/RISCV/attribute-arch.s
+++ b/llvm/test/MC/RISCV/attribute-arch.s
@@ -492,8 +492,8 @@
 .attribute arch, "rv32i_sdtrig1p0"
 # CHECK: attribute      5, "rv32i2p1_sdtrig1p0"
 
-.attribute arch, "rv32i_p0p14"
-# CHECK: attribute      5, "rv32i2p1_p0p14"
+.attribute arch, "rv32i_p0p15"
+# CHECK: attribute      5, "rv32i2p1_p0p15"
 
-.attribute arch, "rv64i_p0p14"
-# CHECK: attribute      5, "rv64i2p1_p0p14"
+.attribute arch, "rv64i_p0p15"
+# CHECK: attribute      5, "rv64i2p1_p0p15"
diff --git a/llvm/test/MC/RISCV/rv32p-valid.s b/llvm/test/MC/RISCV/rv32p-valid.s
index 0383e4ec1ea62..c1d5914192fad 100644
--- a/llvm/test/MC/RISCV/rv32p-valid.s
+++ b/llvm/test/MC/RISCV/rv32p-valid.s
@@ -373,3 +373,278 @@ ppackt.h t3, s0, s0
 # CHECK-ASM-AND-OBJ: packt a2, t3, t1
 # CHECK-ASM: encoding: [0x3b,0x46,0x6e,0xb2]
 packt a2, t3, t1
+# CHECK-ASM: encoding: [0x3b,0x5e,0x83,0x80]
+pm2add.h t3, t1, s0
+# CHECK-ASM-AND-OBJ: pm4add.b t1, s2, t5
+# CHECK-ASM: encoding: [0x3b,0x53,0xe9,0x85]
+pm4add.b t1, s2, t5
+# CHECK-ASM-AND-OBJ: pm2adda.h t1, s2, a4
+# CHECK-ASM: encoding: [0x3b,0x53,0xe9,0x88]
+pm2adda.h t1, s2, a4
+# CHECK-ASM-AND-OBJ: pm4adda.b t3, a0, t5
+# CHECK-ASM: encoding: [0x3b,0x5e,0xe5,0x8d]
+pm4adda.b t3, a0, t5
+# CHECK-ASM-AND-OBJ: pm2add.hx s0, t5, a4
+# CHECK-ASM: encoding: [0x3b,0x54,0xef,0x90]
+pm2add.hx s0, t5, a4
+# CHECK-ASM-AND-OBJ: pm2adda.hx a0, a0, t1
+# CHECK-ASM: encoding: [0x3b,0x55,0x65,0x98]
+pm2adda.hx a0, a0, t1
+# CHECK-ASM-AND-OBJ: pm2addu.h s2, t5, a2
+# CHECK-ASM: encoding: [0x3b,0x59,0xcf,0xa0]
+pm2addu.h s2, t5, a2
+# CHECK-ASM-AND-OBJ: pm4addu.b t5, s0, t1
+# CHECK-ASM: encoding: [0x3b,0x5f,0x64,0xa4]
+pm4addu.b t5, s0, t1
+# CHECK-ASM-AND-OBJ: pm2addau.h t3, t1, t5
+# CHECK-ASM: encoding: [0x3b,0x5e,0xe3,0xa9]
+pm2addau.h t3, t1, t5
+# CHECK-ASM-AND-OBJ: pm4addau.b a4, t3, a0
+# CHECK-ASM: encoding: [0x3b,0x57,0xae,0xac]
+pm4addau.b a4, t3, a0
+# CHECK-ASM-AND-OBJ: pmq2add.h t1, a2, t1
+# CHECK-ASM: encoding: [0x3b,0x53,0x66,0xb0]
+pmq2add.h t1, a2, t1
+# CHECK-ASM-AND-OBJ: pmqr2add.h a2, a4, s2
+# CHECK-ASM: encoding: [0x3b,0x56,0x27,0xb5]
+pmqr2add.h a2, a4, s2
+# CHECK-ASM-AND-OBJ: pmq2adda.h a2, s2, t1
+# CHECK-ASM: encoding: [0x3b,0x56,0x69,0xb8]
+pmq2adda.h a2, s2, t1
+# CHECK-ASM-AND-OBJ: pmqr2adda.h t1, s0, a2
+# CHECK-ASM: encoding: [0x3b,0x53,0xc4,0xbc]
+pmqr2adda.h t1, s0, a2
+# CHECK-ASM-AND-OBJ: pm2sub.h t1, a0, a4
+# CHECK-ASM: encoding: [0x3b,0x53,0xe5,0xc0]
+pm2sub.h t1, a0, a4
+# CHECK-ASM-AND-OBJ: pm2sadd.h s2, s2, t3
+# CHECK-ASM: encoding: [0x3b,0x59,0xc9,0xc5]
+pm2sadd.h s2, s2, t3
+# CHECK-ASM-AND-OBJ: pm2suba.h s0, s0, t3
+# CHECK-ASM: encoding: [0x3b,0x54,0xc4,0xc9]
+pm2suba.h s0, s0, t3
+# CHECK-ASM-AND-OBJ: pm2sub.hx a2, a2, a0
+# CHECK-ASM: encoding: [0x3b,0x56,0xa6,0xd0]
+pm2sub.hx a2, a2, a0
+# CHECK-ASM-AND-OBJ: pm2sadd.hx t5, s2, a0
+# CHECK-ASM: encoding: [0x3b,0x5f,0xa9,0xd4]
+pm2sadd.hx t5, s2, a0
+# CHECK-ASM-AND-OBJ: pm2suba.hx a4, a2, t5
+# CHECK-ASM: encoding: [0x3b,0x57,0xe6,0xd9]
+pm2suba.hx a4, a2, t5
+# CHECK-ASM-AND-OBJ: pm2addsu.h s0, s0, s2
+# CHECK-ASM: encoding: [0x3b,0x54,0x24,0xe1]
+pm2addsu.h s0, s0, s2
+# CHECK-ASM-AND-OBJ: pm4addsu.b a0, s0, t3
+# CHECK-ASM: encoding: [0x3b,0x55,0xc4,0xe5]
+pm4addsu.b a0, s0, t3
+# CHECK-ASM-AND-OBJ: pm2addasu.h a4, t1, a2
+# CHECK-ASM: encoding: [0x3b,0x57,0xc3,0xe8]
+pm2addasu.h a4, t1, a2
+# CHECK-ASM-AND-OBJ: pm4addasu.b s2, s0, a2
+# CHECK-ASM: encoding: [0x3b,0x59,0xc4,0xec]
+pm4addasu.b s2, s0, a2
+# CHECK-ASM-AND-OBJ: mqacc.h01 a4, t1, a0
+# CHECK-ASM: encoding: [0x3b,0x57,0xa3,0xf8]
+mqacc.h01 a4, t1, a0
+# CHECK-ASM-AND-OBJ: mqracc.h01 s0, a0, t5
+# CHECK-ASM: encoding: [0x3b,0x54,0xe5,0xfd]
+mqracc.h01 s0, a0, t5
+# CHECK-ASM-AND-OBJ: pas.hx t5, s2, t5
+# CHECK-ASM: encoding: [0x3b,0x6f,0xe9,0x81]
+pas.hx t5, s2, t5
+# CHECK-ASM-AND-OBJ: psa.hx s0, t1, t3
+# CHECK-ASM: encoding: [0x3b,0x64,0xc3,0x85]
+psa.hx s0, t1, t3
+# CHECK-ASM-AND-OBJ: psas.hx t5, s2, a2
+# CHECK-ASM: encoding: [0x3b,0x6f,0xc9,0x90]
+psas.hx t5, s2, a2
+# CHECK-ASM-AND-OBJ: pssa.hx s2, t3, t5
+# CHECK-ASM: encoding: [0x3b,0x69,0xee,0x95]
+pssa.hx s2, t3, t5
+# CHECK-ASM-AND-OBJ: pmseq.h a0, t1, s0
+# CHECK-ASM: encoding: [0x3b,0x65,0x83,0xc0]
+pmseq.h a0, t1, s0
+# CHECK-ASM-AND-OBJ: pmseq.b s0, s2, s0
+# CHECK-ASM: encoding: [0x3b,0x64,0x89,0xc4]
+pmseq.b s0, s2, s0
+# CHECK-ASM-AND-OBJ: pmslt.h t3, a2, a4
+# CHECK-ASM: encoding: [0x3b,0x6e,0xe6,0xd0]
+pmslt.h t3, a2, a4
+# CHECK-ASM-AND-OBJ: pmslt.b t5, a4, t1
+# CHECK-ASM: encoding: [0x3b,0x6f,0x67,0xd4]
+pmslt.b t5, a4, t1
+# CHECK-ASM-AND-OBJ: pmsltu.h s2, s0, s2
+# CHECK-ASM: encoding: [0x3b,0x69,0x24,0xd9]
+pmsltu.h s2, s0, s2
+# CHECK-ASM-AND-OBJ: pmsltu.b s0, s2, t5
+# CHECK-ASM: encoding: [0x3b,0x64,0xe9,0xdd]
+pmsltu.b s0, s2, t5
+# CHECK-ASM-AND-OBJ: pmin.h s2, t3, s2
+# CHECK-ASM: encoding: [0x3b,0x69,0x2e,0xe1]
+pmin.h s2, t3, s2
+# CHECK-ASM-AND-OBJ: pmin.b a2, a2, t5
+# CHECK-ASM: encoding: [0x3b,0x66,0xe6,0xe5]
+pmin.b a2, a2, t5
+# CHECK-ASM-AND-OBJ: pminu.h a0, a4, a2
+# CHECK-ASM: encoding: [0x3b,0x65,0xc7,0xe8]
+pminu.h a0, a4, a2
+# CHECK-ASM-AND-OBJ: pminu.b a4, t3, s2
+# CHECK-ASM: encoding: [0x3b,0x67,0x2e,0xed]
+pminu.b a4, t3, s2
+# CHECK-ASM-AND-OBJ: pmax.h a4, s2, a0
+# CHECK-ASM: encoding: [0x3b,0x67,0xa9,0xf0]
+pmax.h a4, s2, a0
+# CHECK-ASM-AND-OBJ: pmax.b t1, s0, s0
+# CHECK-ASM: encoding: [0x3b,0x63,0x84,0xf4]
+pmax.b t1, s0, s0
+# CHECK-ASM-AND-OBJ: pmaxu.h a0, s0, s0
+# CHECK-ASM: encoding: [0x3b,0x65,0x84,0xf8]
+pmaxu.h a0, s0, s0
+# CHECK-ASM-AND-OBJ: pmaxu.b t3, a0, t1
+# CHECK-ASM: encoding: [0x3b,0x6e,0x65,0xfc]
+pmaxu.b t3, a0, t1
+# CHECK-ASM-AND-OBJ: mseq a4, t1, s0
+# CHECK-ASM: encoding: [0x3b,0x67,0x83,0xc2]
+mseq a4, t1, s0
+# CHECK-ASM-AND-OBJ: mslt t5, t5, t1
+# CHECK-ASM: encoding: [0x3b,0x6f,0x6f,0xd2]
+mslt t5, t5, t1
+# CHECK-ASM-AND-OBJ: msltu s2, a0, t3
+# CHECK-ASM: encoding: [0x3b,0x69,0xc5,0xdb]
+msltu s2, a0, t3
+# CHECK-ASM-AND-OBJ: pmulh.h s0, t3, t3
+# CHECK-ASM: encoding: [0x3b,0x74,0xce,0x81]
+pmulh.h s0, t3, t3
+# CHECK-ASM-AND-OBJ: pmulhr.h t1, t5, s0
+# CHECK-ASM: encoding: [0x3b,0x73,0x8f,0x84]
+pmulhr.h t1, t5, s0
+# CHECK-ASM-AND-OBJ: pmhacc.h s0, t5, s2
+# CHECK-ASM: encoding: [0x3b,0x74,0x2f,0x89]
+pmhacc.h s0, t5, s2
+# CHECK-ASM-AND-OBJ: pmhracc.h a4, t3, a2
+# CH...
[truncated]

``````````

</details>


https://github.com/llvm/llvm-project/pull/150379
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