[llvm] bc82e9b - [RISCV] Add vfabs.v pseudo instruction.

[Hsiangkai Wang via llvm-commits]

Author: Hsiangkai Wang
Date: 2021-03-28T10:24:05+08:00
New Revision: bc82e9bf25abb9755ad1feeab4ef6feafb44f9de

URL: https://github.com/llvm/llvm-project/commit/bc82e9bf25abb9755ad1feeab4ef6feafb44f9de
DIFF: https://github.com/llvm/llvm-project/commit/bc82e9bf25abb9755ad1feeab4ef6feafb44f9de.diff

LOG: [RISCV] Add vfabs.v pseudo instruction.

Differential Revision: https://reviews.llvm.org/D99454

Added: 
    

Modified: 
    llvm/lib/Target/RISCV/RISCVInstrInfoV.td
    llvm/test/MC/RISCV/rvv/aliases.s

Removed: 
    


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diff  --git a/llvm/lib/Target/RISCV/RISCVInstrInfoV.td b/llvm/lib/Target/RISCV/RISCVInstrInfoV.td
index 6f71a8e59f64d..5f51aac6089cf 100644
--- a/llvm/lib/Target/RISCV/RISCVInstrInfoV.td
+++ b/llvm/lib/Target/RISCV/RISCVInstrInfoV.td
@@ -818,6 +818,8 @@ defm VFSGNJX_V : VALU_FV_V_F<"vfsgnjx", 0b001010>;
 
 def : InstAlias<"vfneg.v $vd, $vs$vm",
                 (VFSGNJN_VV VR:$vd, VR:$vs, VR:$vs, VMaskOp:$vm)>;
+def : InstAlias<"vfabs.v $vd, $vs$vm",
+                (VFSGNJX_VV VR:$vd, VR:$vs, VR:$vs, VMaskOp:$vm)>;
 
 // Vector Floating-Point Compare Instructions
 let RVVConstraint = NoConstraint in {

diff  --git a/llvm/test/MC/RISCV/rvv/aliases.s b/llvm/test/MC/RISCV/rvv/aliases.s
index ebe9e79399a69..ba41594baa735 100644
--- a/llvm/test/MC/RISCV/rvv/aliases.s
+++ b/llvm/test/MC/RISCV/rvv/aliases.s
@@ -75,3 +75,6 @@ vncvt.x.x.w v2, v1, v0.t
 # ALIAS:    vfneg.v         v2, v1, v0.t     # encoding: [0x57,0x91,0x10,0x24]
 # NO-ALIAS: vfsgnjn.vv      v2, v1, v1, v0.t # encoding: [0x57,0x91,0x10,0x24]
 vfneg.v v2, v1, v0.t 
+# ALIAS:    vfabs.v         v2, v1, v0.t     # encoding: [0x57,0x91,0x10,0x28]
+# NO-ALIAS: vfsgnjx.vv      v2, v1, v1, v0.t # encoding: [0x57,0x91,0x10,0x28]
+vfabs.v v2, v1, v0.t