R600: Remove unnecessary build_vector pattern.

It is already fully handled in AMDGPUISelDAGToDAG.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202312 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/R600/AMDGPUInstructions.td

@@ -322,7 +322,7 @@ class POW_Common <AMDGPUInst log_ieee, AMDGPUInst exp_ieee, AMDGPUInst mul>
 /* --------------------- */
 
 /* Extract element pattern */
-class Extract_Element <ValueType sub_type, ValueType vec_type, int sub_idx, 
+class Extract_Element <ValueType sub_type, ValueType vec_type, int sub_idx,
                        SubRegIndex sub_reg>
   : Pat<
   (sub_type (vector_extract vec_type:$src, sub_idx)),
@@ -337,12 +337,6 @@ class Insert_Element <ValueType elem_type, ValueType vec_type,
   (INSERT_SUBREG $vec, $elem, sub_reg)
 >;
 
-class Vector4_Build <ValueType vecType, ValueType elemType> : Pat <
-  (vecType (build_vector elemType:$x, elemType:$y, elemType:$z, elemType:$w)),
-  (INSERT_SUBREG (INSERT_SUBREG (INSERT_SUBREG (INSERT_SUBREG
-    (vecType (IMPLICIT_DEF)), $x, sub0), $y, sub1), $z, sub2), $w, sub3)
->;
-
 // XXX: Convert to new syntax and use COPY_TO_REG, once the DFAPacketizer
 // can handle COPY instructions.
 // bitconvert pattern

lib/Target/R600/R600Instructions.td

@@ -2375,9 +2375,6 @@ def : Insert_Element <i32, v4i32, 1, sub1>;
 def : Insert_Element <i32, v4i32, 2, sub2>;
 def : Insert_Element <i32, v4i32, 3, sub3>;
 
-def : Vector4_Build <v4f32, f32>;
-def : Vector4_Build <v4i32, i32>;
-
 def : Extract_Element <f32, v2f32, 0, sub0>;
 def : Extract_Element <f32, v2f32, 1, sub1>;