From: Evandro Menezes <e.menezes@samsung.com>
Date: Mon, 20 Jun 2016 18:39:41 +0000 (+0000)
Subject: [AArch64] Adjust the loop buffer size for Exynos M1 (NFC)
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=8ff4f4ad5b95becb6c9c421f3f3e8f5512ce5915;p=llvm

[AArch64] Adjust the loop buffer size for Exynos M1 (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273185 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/AArch64/AArch64SchedM1.td b/lib/Target/AArch64/AArch64SchedM1.td
index da403006181..115ee961f34 100644
--- a/lib/Target/AArch64/AArch64SchedM1.td
+++ b/lib/Target/AArch64/AArch64SchedM1.td
@@ -20,7 +20,7 @@
 def ExynosM1Model : SchedMachineModel {
   let IssueWidth            =  4; // Up to 4 uops per cycle.
   let MicroOpBufferSize     = 96; // ROB size.
-  let LoopMicroOpBufferSize = 32; // Instruction queue size.
+  let LoopMicroOpBufferSize = 24; // Based on the instruction queue size.
   let LoadLatency           =  4; // Optimistic load cases.
   let MispredictPenalty     = 14; // Minimum branch misprediction penalty.
   let CompleteModel         =  0; // Use the default model otherwise.