Add NVExtFrm to represent NEON Vector Extract Instructions, that uses Inst{11-8}

to encode the byte location of the extracted result in the concatenation of the
operands, from the least significant end.

Modify VEXTd and VEXTq classes to use the format.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99659 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/ARMInstrFormats.td b/lib/Target/ARM/ARMInstrFormats.td
index f893e5b00184aa1f5007c1250796d20ef3508a82..08ac36375cd0eacc557fdc7a0448192b9f0d6079 100644 (file)
--- a/lib/Target/ARM/ARMInstrFormats.td
+++ b/lib/Target/ARM/ARMInstrFormats.td
@@ -68,6 +68,7 @@ def N2RegVShLFrm   : Format<36>;
 def N2RegVShRFrm   : Format<37>;
 def N3RegFrm       : Format<38>;
 def N3RegVShFrm    : Format<39>;
+def NVExtFrm       : Format<40>;
 
 // Misc flags.
 

diff --git a/lib/Target/ARM/ARMInstrNEON.td b/lib/Target/ARM/ARMInstrNEON.td
index 3fcb95133d25440b4eed5579fb53c7e87b30546d..6e17f775483b15993b133bdc114b04c1eda2400d 100644 (file)
--- a/lib/Target/ARM/ARMInstrNEON.td
+++ b/lib/Target/ARM/ARMInstrNEON.td
@@ -3253,18 +3253,18 @@ def VREV16q8  : VREV16Q<0b00, "vrev16", "8", v16i8>;
 //   VEXT     : Vector Extract
 
 class VEXTd<string OpcodeStr, string Dt, ValueType Ty>
-  : N3V<0,1,0b11,{?,?,?,?},0,0, (outs DPR:$dst),
-        (ins DPR:$lhs, DPR:$rhs, i32imm:$index), IIC_VEXTD,
-        OpcodeStr, Dt, "$dst, $lhs, $rhs, $index", "",
-        [(set DPR:$dst, (Ty (NEONvext (Ty DPR:$lhs),
-                                      (Ty DPR:$rhs), imm:$index)))]>;
+  : N3Vf<0,1,0b11,{?,?,?,?},0,0, (outs DPR:$dst),
+         (ins DPR:$lhs, DPR:$rhs, i32imm:$index), NVExtFrm,
+         IIC_VEXTD, OpcodeStr, Dt, "$dst, $lhs, $rhs, $index", "",
+         [(set DPR:$dst, (Ty (NEONvext (Ty DPR:$lhs),
+                                       (Ty DPR:$rhs), imm:$index)))]>;
 
 class VEXTq<string OpcodeStr, string Dt, ValueType Ty>
-  : N3V<0,1,0b11,{?,?,?,?},1,0, (outs QPR:$dst),
-        (ins QPR:$lhs, QPR:$rhs, i32imm:$index), IIC_VEXTQ,
-        OpcodeStr, Dt, "$dst, $lhs, $rhs, $index", "",
-        [(set QPR:$dst, (Ty (NEONvext (Ty QPR:$lhs),
-                                      (Ty QPR:$rhs), imm:$index)))]>;
+  : N3Vf<0,1,0b11,{?,?,?,?},1,0, (outs QPR:$dst),
+         (ins QPR:$lhs, QPR:$rhs, i32imm:$index), NVExtFrm,
+         IIC_VEXTQ, OpcodeStr, Dt, "$dst, $lhs, $rhs, $index", "",
+         [(set QPR:$dst, (Ty (NEONvext (Ty QPR:$lhs),
+                                       (Ty QPR:$rhs), imm:$index)))]>;
 
 def VEXTd8  : VEXTd<"vext", "8",  v8i8>;
 def VEXTd16 : VEXTd<"vext", "16", v4i16>;