AMDGPU/R600: Add indentation to VTX and TEX fetch asm strings

[jvesely]

Summary

These are printed as part Fetch clauses.

[• tstellarAMD]

LGTM.

llvm/trunk/lib/Target/AMDGPU/R600Instructions.td

class EG_CF_RAT <bits <8> cfinst, bits <6> ratinst, bits<4> ratid, bits<4> mask,
 
   let Inst{31-0} = Word0;
   let Inst{63-32} = Word1;
   let IsExport = 1;
 
 }
 
 class VTX_READ <string name, bits<8> buffer_id, dag outs, list<dag> pattern>
-    : InstR600ISA <outs, (ins MEMxi:$src_gpr), name, pattern>,
+    : InstR600ISA <outs, (ins MEMxi:$src_gpr), !strconcat("  ", name), pattern>,
       VTX_WORD1_GPR {
 
   // Static fields
   let DST_REL = 0;
   // The docs say that if this bit is set, then DATA_FORMAT, NUM_FORMAT_ALL,
   // FORMAT_COMP_ALL, SRF_MODE_ALL, and ENDIAN_SWAP fields will be ignored,
   // however, based on my testing if USE_CONST_FIELDS is set, then all
   // these fields need to be set to 0.
class R600_TEX <bits<11> inst, string opName> :
   InstR600 <(outs R600_Reg128:$DST_GPR),
           (ins R600_Reg128:$SRC_GPR,
           RSel:$srcx, RSel:$srcy, RSel:$srcz, RSel:$srcw,
           i32imm:$offsetx, i32imm:$offsety, i32imm:$offsetz,
           RSel:$DST_SEL_X, RSel:$DST_SEL_Y, RSel:$DST_SEL_Z, RSel:$DST_SEL_W,
           i32imm:$RESOURCE_ID, i32imm:$SAMPLER_ID,
           CT:$COORD_TYPE_X, CT:$COORD_TYPE_Y, CT:$COORD_TYPE_Z,
           CT:$COORD_TYPE_W),
-          !strconcat(opName,
+          !strconcat("  ", opName,
           " $DST_GPR.$DST_SEL_X$DST_SEL_Y$DST_SEL_Z$DST_SEL_W, "
           "$SRC_GPR.$srcx$srcy$srcz$srcw "
           "RID:$RESOURCE_ID SID:$SAMPLER_ID "
           "CT:$COORD_TYPE_X$COORD_TYPE_Y$COORD_TYPE_Z$COORD_TYPE_W"),
           [],
           NullALU>, TEX_WORD0, TEX_WORD1, TEX_WORD2 {
   let Inst{31-0} = Word0;
   let Inst{63-32} = Word1;