This patch adds a new NVPTX back-end to LLVM which supports code generation for NVIDIA PTX 3.0. This back-end will (eventually) replace the current PTX back-end, while maintaining compatibility with it.

The new target machines are:

nvptx (old ptx32) => 32-bit PTX
nvptx64 (old ptx64) => 64-bit PTX

The sources are based on the internal NVIDIA NVPTX back-end, and
contain more functionality than the current PTX back-end currently
provides.

NV_CONTRIB

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156196 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 43 insertions, 0 deletions

diff --git a/lib/Target/NVPTX/NVPTXInstrFormats.td b/lib/Target/NVPTX/NVPTXInstrFormats.td
new file mode 100644
index 0000000000..f11f1b8f96
--- /dev/null
+++ b/lib/Target/NVPTX/NVPTXInstrFormats.td
@@ -0,0 +1,43 @@
+//===- NVPTXInstrFormats.td - NVPTX Instruction Formats-------*- tblgen -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+//===----------------------------------------------------------------------===//
+//  Describe NVPTX instructions format
+//
+//===----------------------------------------------------------------------===//
+
+// Vector instruction type enum
+class VecInstTypeEnum<bits<4> val> {
+  bits<4> Value=val;
+}
+def VecNOP : VecInstTypeEnum<0>;
+
+// Generic NVPTX Format
+
+class NVPTXInst<dag outs, dag ins, string asmstr, list<dag> pattern>
+  : Instruction {
+  field bits<14> Inst;
+
+  let Namespace = "NVPTX";
+  dag OutOperandList = outs;
+  dag InOperandList = ins;
+  let AsmString = asmstr;
+  let Pattern = pattern;
+
+  // TSFlagFields
+  bits<4> VecInstType = VecNOP.Value;
+  bit IsSimpleMove = 0;
+  bit IsLoad = 0;
+  bit IsStore = 0;
+
+  let TSFlags{3-0} = VecInstType;
+  let TSFlags{4-4} = IsSimpleMove;
+  let TSFlags{5-5} = IsLoad;
+  let TSFlags{6-6} = IsStore;
+}