[PATCH] D123291: [RISCV] Select unmasked FP setcc insts via ISel post-process

[Fraser Cormack via Phabricator via llvm-commits]

frasercrmck created this revision.
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Similar to D123217 <https://reviews.llvm.org/D123217> but for the floating-point patterns. No change in
generated output, while reducing the generated table size.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D123291

Files:
  llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td


Index: llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td
===================================================================
--- llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td
+++ llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td
@@ -527,13 +527,6 @@
                                   string inst_name,
                                   string swapped_op_inst_name> {
   foreach fvti = AllFloatVectors in {
-    def : Pat<(fvti.Mask (riscv_setcc_vl (fvti.Vector fvti.RegClass:$rs1),
-                                         fvti.RegClass:$rs2,
-                                         cc,
-                                         (fvti.Mask true_mask),
-                                         VLOpFrag)),
-              (!cast<Instruction>(inst_name#"_VV_"#fvti.LMul.MX)
-                  fvti.RegClass:$rs1, fvti.RegClass:$rs2, GPR:$vl, fvti.Log2SEW)>;
     def : Pat<(fvti.Mask (riscv_setcc_vl (fvti.Vector fvti.RegClass:$rs1),
                                          fvti.RegClass:$rs2,
                                          cc,
@@ -543,14 +536,6 @@
                   (fvti.Mask (IMPLICIT_DEF)), fvti.RegClass:$rs1,
                   fvti.RegClass:$rs2, (fvti.Mask V0),
                   GPR:$vl, fvti.Log2SEW)>;
-    def : Pat<(fvti.Mask (riscv_setcc_vl (fvti.Vector fvti.RegClass:$rs1),
-                                         (SplatFPOp fvti.ScalarRegClass:$rs2),
-                                         cc,
-                                         (fvti.Mask true_mask),
-                                         VLOpFrag)),
-              (!cast<Instruction>(inst_name#"_V"#fvti.ScalarSuffix#"_"#fvti.LMul.MX)
-                  fvti.RegClass:$rs1, fvti.ScalarRegClass:$rs2,
-                  GPR:$vl, fvti.Log2SEW)>;
     def : Pat<(fvti.Mask (riscv_setcc_vl (fvti.Vector fvti.RegClass:$rs1),
                                          (SplatFPOp fvti.ScalarRegClass:$rs2),
                                          cc,
@@ -560,14 +545,6 @@
                   (fvti.Mask (IMPLICIT_DEF)), fvti.RegClass:$rs1,
                   fvti.ScalarRegClass:$rs2, (fvti.Mask V0),
                   GPR:$vl, fvti.Log2SEW)>;
-    def : Pat<(fvti.Mask (riscv_setcc_vl (SplatFPOp fvti.ScalarRegClass:$rs2),
-                                         (fvti.Vector fvti.RegClass:$rs1),
-                                         cc,
-                                         (fvti.Mask true_mask),
-                                         VLOpFrag)),
-              (!cast<Instruction>(swapped_op_inst_name#"_V"#fvti.ScalarSuffix#"_"#fvti.LMul.MX)
-                  fvti.RegClass:$rs1, fvti.ScalarRegClass:$rs2,
-                  GPR:$vl, fvti.Log2SEW)>;
     def : Pat<(fvti.Mask (riscv_setcc_vl (SplatFPOp fvti.ScalarRegClass:$rs2),
                                          (fvti.Vector fvti.RegClass:$rs1),
                                          cc,


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