From 8e270f5a6b8ceb0f3ac3ef1ffb83c5e29b44ae68 Mon Sep 17 00:00:00 2001
From: Marek Olsak <marek.olsak@amd.com>
Date: Mon, 30 Jan 2017 12:25:14 +0000
Subject: [PATCH] AMDGPU: Remove a useless VI SMRD pattern

Summary: already covered by complex patterns

Reviewers: arsenm, nhaehnle, tstellarAMD

Subscribers: kzhuravl, wdng, yaxunl, tony-tye

Differential Revision: https://reviews.llvm.org/D28995

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@293477 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/AMDGPU/SIInstrInfo.td    | 4 ----
 lib/Target/AMDGPU/SMInstructions.td | 6 ------
 2 files changed, 10 deletions(-)

diff --git a/lib/Target/AMDGPU/SIInstrInfo.td b/lib/Target/AMDGPU/SIInstrInfo.td
index 85b94201ea6..cfa17739829 100644
--- a/lib/Target/AMDGPU/SIInstrInfo.td
+++ b/lib/Target/AMDGPU/SIInstrInfo.td
@@ -266,10 +266,6 @@ def SIMM16bit : PatLeaf <(imm),
   [{return isInt<16>(N->getSExtValue());}]
 >;
 
-def IMM20bit : PatLeaf <(imm),
-  [{return isUInt<20>(N->getZExtValue());}]
->;
-
 class InlineImm <ValueType vt> : PatLeaf <(vt imm), [{
   return isInlineImmediate(N);
 }]>;
diff --git a/lib/Target/AMDGPU/SMInstructions.td b/lib/Target/AMDGPU/SMInstructions.td
index 02656483cd7..5dfae3f8f3f 100644
--- a/lib/Target/AMDGPU/SMInstructions.td
+++ b/lib/Target/AMDGPU/SMInstructions.td
@@ -293,12 +293,6 @@ def : Pat <
 
 let Predicates = [isVI] in {
 
-// 1. Offset as 20bit DWORD immediate
-def : Pat <
-  (SIload_constant v4i32:$sbase, IMM20bit:$offset),
-  (S_BUFFER_LOAD_DWORD_IMM $sbase, (as_i32imm $offset), 0)
->;
-
 def : Pat <
   (i64 (readcyclecounter)),
   (S_MEMREALTIME)
-- 
2.50.1