From b754b786b8e9cc0b3958bef56640a8658c50b044 Mon Sep 17 00:00:00 2001
From: Noah Huetter <noahhuetter@gmail.com>
Date: Tue, 4 Jan 2022 19:05:10 +0100
Subject: [PATCH] [RISCV/Xsmallfloat] Add missing instruction alias for quarter
 fused operations

---
 llvm/lib/Target/RISCV/RISCVInstrInfoXsmallfloatGen.td | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/llvm/lib/Target/RISCV/RISCVInstrInfoXsmallfloatGen.td b/llvm/lib/Target/RISCV/RISCVInstrInfoXsmallfloatGen.td
index e056e483383ec..b3d21b20450d4 100644
--- a/llvm/lib/Target/RISCV/RISCVInstrInfoXsmallfloatGen.td
+++ b/llvm/lib/Target/RISCV/RISCVInstrInfoXsmallfloatGen.td
@@ -104,15 +104,19 @@ def FSB : RVInstS<0b000, RISCVOpcode<0b0100111>, (outs ),
 let hasSideEffects = 0, mayLoad = 0, mayStore = 0 in
 def FMADD_B : RVInstR4<0b11, RISCVOpcode<0b1000011>,
              (outs FPR16:$rd), (ins FPR16:$rs1, FPR16:$rs2, FPR16:$rs3, frmarg:$funct3), "fmadd.b", "$rd, $rs1, $rs2, $rs3, $funct3">, Sched<[]>;
+def      : InstAlias<"fmadd.b $rd, $rs1, $rs2, $rs3", (FMADD_B FPR16:$rd, FPR16:$rs1, FPR16:$rs2, FPR16:$rs3, 0b111)>;
 let hasSideEffects = 0, mayLoad = 0, mayStore = 0 in
 def FMSUB_B : RVInstR4<0b11, RISCVOpcode<0b1000111>,
              (outs FPR16:$rd), (ins FPR16:$rs1, FPR16:$rs2, FPR16:$rs3, frmarg:$funct3), "fmsub.b", "$rd, $rs1, $rs2, $rs3, $funct3">, Sched<[]>;
+def      : InstAlias<"fmsub.b $rd, $rs1, $rs2, $rs3", (FMSUB_B FPR16:$rd, FPR16:$rs1, FPR16:$rs2, FPR16:$rs3, 0b111)>;
 let hasSideEffects = 0, mayLoad = 0, mayStore = 0 in
 def FNMSUB_B : RVInstR4<0b11, RISCVOpcode<0b1001011>,
              (outs FPR16:$rd), (ins FPR16:$rs1, FPR16:$rs2, FPR16:$rs3, frmarg:$funct3), "fnmsub.b", "$rd, $rs1, $rs2, $rs3, $funct3">, Sched<[]>;
+def      : InstAlias<"fnmsub.b $rd, $rs1, $rs2, $rs3", (FNMSUB_B FPR16:$rd, FPR16:$rs1, FPR16:$rs2, FPR16:$rs3, 0b111)>;
 let hasSideEffects = 0, mayLoad = 0, mayStore = 0 in
 def FNMADD_B : RVInstR4<0b11, RISCVOpcode<0b1001111>,
              (outs FPR16:$rd), (ins FPR16:$rs1, FPR16:$rs2, FPR16:$rs3, frmarg:$funct3), "fnmadd.b", "$rd, $rs1, $rs2, $rs3, $funct3">, Sched<[]>;
+def      : InstAlias<"fnmadd.b $rd, $rs1, $rs2, $rs3", (FNMADD_B FPR16:$rd, FPR16:$rs1, FPR16:$rs2, FPR16:$rs3, 0b111)>;
 let hasSideEffects = 0, mayLoad = 0, mayStore = 0 in
 def FADD_B : RVInstRFrm<0b0000011, RISCVOpcode<0b1010011>,
              (outs FPR16:$rd), (ins FPR16:$rs1, FPR16:$rs2, frmarg:$funct3), "fadd.b", "$rd, $rs1, $rs2, $funct3">, Sched<[]> ;