[llvm] 2c26cfd - [RISCV] Use splat_vector instead of SplatPat in widening FP instruction patterns. NFCI

[Craig Topper via llvm-commits]

Author: Craig Topper
Date: 2022-02-07T15:53:27-08:00
New Revision: 2c26cfdef73be39959add636f3f90d836d66bdca

URL: https://github.com/llvm/llvm-project/commit/2c26cfdef73be39959add636f3f90d836d66bdca
DIFF: https://github.com/llvm/llvm-project/commit/2c26cfdef73be39959add636f3f90d836d66bdca.diff

LOG: [RISCV] Use splat_vector instead of SplatPat in widening FP instruction patterns. NFCI

We use splat_vector for FP nodes without VL, not SplatPat which handles
splat_vector and integer VMV_V_X_VL.

Reduces isel table size by a few hundred bytes.

Added: 
    

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

Removed: 
    


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diff  --git a/llvm/lib/Target/RISCV/RISCVInstrInfoVSDPatterns.td b/llvm/lib/Target/RISCV/RISCVInstrInfoVSDPatterns.td
index 54665e78b8096..a5de97d667ffc 100644
--- a/llvm/lib/Target/RISCV/RISCVInstrInfoVSDPatterns.td
+++ b/llvm/lib/Target/RISCV/RISCVInstrInfoVSDPatterns.td
@@ -399,7 +399,7 @@ multiclass VPatWidenBinaryFPSDNode_VV_VF<SDNode op, string instruction_name> {
                  vti.Vti.RegClass:$rs2, vti.Vti.RegClass:$rs1,
                  vti.Vti.AVL, vti.Vti.Log2SEW)>;
     def : Pat<(op (vti.Wti.Vector (fpext_oneuse (vti.Vti.Vector vti.Vti.RegClass:$rs2))),
-                  (vti.Wti.Vector (fpext_oneuse (vti.Vti.Vector (SplatPat vti.Vti.ScalarRegClass:$rs1))))),
+                  (vti.Wti.Vector (fpext_oneuse (vti.Vti.Vector (splat_vector vti.Vti.ScalarRegClass:$rs1))))),
               (!cast<Instruction>(instruction_name#"_V"#vti.Vti.ScalarSuffix#"_"#vti.Vti.LMul.MX)
                  vti.Vti.RegClass:$rs2, vti.Vti.ScalarRegClass:$rs1,
                  vti.Vti.AVL, vti.Vti.Log2SEW)>;
@@ -414,7 +414,7 @@ multiclass VPatWidenBinaryFPSDNode_WV_WF<SDNode op, string instruction_name> {
                  vti.Wti.RegClass:$rs2, vti.Vti.RegClass:$rs1,
                  vti.Vti.AVL, vti.Vti.Log2SEW)>;
     def : Pat<(op (vti.Wti.Vector vti.Wti.RegClass:$rs2),
-                  (vti.Wti.Vector (fpext_oneuse (vti.Vti.Vector (SplatPat vti.Vti.ScalarRegClass:$rs1))))),
+                  (vti.Wti.Vector (fpext_oneuse (vti.Vti.Vector (splat_vector vti.Vti.ScalarRegClass:$rs1))))),
               (!cast<Instruction>(instruction_name#"_W"#vti.Vti.ScalarSuffix#"_"#vti.Vti.LMul.MX)
                  vti.Wti.RegClass:$rs2, vti.Vti.ScalarRegClass:$rs1,
                  vti.Vti.AVL, vti.Vti.Log2SEW)>;