[llvm] 34e1b47 - [RISCV] Select unmasked FP setcc insts via ISel post-process

[Fraser Cormack via llvm-commits]

Author: Fraser Cormack
Date: 2022-04-08T17:13:43+01:00
New Revision: 34e1b4774a47d2cc92d8b32aaa25778b7acf9255

URL: https://github.com/llvm/llvm-project/commit/34e1b4774a47d2cc92d8b32aaa25778b7acf9255
DIFF: https://github.com/llvm/llvm-project/commit/34e1b4774a47d2cc92d8b32aaa25778b7acf9255.diff

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

Similar to D123217 but for the floating-point patterns. No change in
generated output, while reducing the generated table size.

Reviewed By: arcbbb

Differential Revision: https://reviews.llvm.org/D123291

Added: 
    

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

Removed: 
    


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diff  --git a/llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td b/llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td
index ba62cce1ad04b..521b387e33ac1 100644
--- a/llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td
+++ b/llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td
@@ -540,13 +540,6 @@ multiclass VPatFPSetCCVL_VV_VF_FV<CondCode cc,
                                   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:$rs2,
                                          cc,
@@ -556,14 +549,6 @@ multiclass VPatFPSetCCVL_VV_VF_FV<CondCode cc,
                   (fvti.Mask (IMPLICIT_DEF)), fvti.RegClass:$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:$rs2),
                                          cc,
@@ -573,14 +558,6 @@ multiclass VPatFPSetCCVL_VV_VF_FV<CondCode cc,
                   (fvti.Mask (IMPLICIT_DEF)), fvti.RegClass:$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,