From df8fa6d734417eda61373bbbb025f538c026cd5b Mon Sep 17 00:00:00 2001
From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Fri, 20 Apr 2018 13:12:04 +0000
Subject: [PATCH] [X86][BtVer2] Cleanup some old FIXMEs from the model. NFCI.

llvm-svn: 330428
---
 llvm/lib/Target/X86/X86ScheduleBtVer2.td | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/llvm/lib/Target/X86/X86ScheduleBtVer2.td b/llvm/lib/Target/X86/X86ScheduleBtVer2.td
index 4f5784f..681d8fc 100644
--- a/llvm/lib/Target/X86/X86ScheduleBtVer2.td
+++ b/llvm/lib/Target/X86/X86ScheduleBtVer2.td
@@ -278,15 +278,13 @@ defm : JWriteResIntPair<WriteJump,  [JALU01], 1>;
 def : WriteRes<WriteSystem,     [JALU01]> { let Latency = 100; }
 def : WriteRes<WriteMicrocoded, [JALU01]> { let Latency = 100; }
 def : WriteRes<WriteFence,  [JSAGU]>;
+
 // Nops don't have dependencies, so there's no actual latency, but we set this
 // to '1' to tell the scheduler that the nop uses an ALU slot for a cycle.
 def : WriteRes<WriteNop, [JALU01]> { let Latency = 1; }
 
 ////////////////////////////////////////////////////////////////////////////////
 // Floating point. This covers both scalar and vector operations.
-// FIXME: should we bother splitting JFPU pipe + unit stages for fast instructions?
-// FIXME: Double precision latencies
-// FIXME: SS vs PS latencies
 ////////////////////////////////////////////////////////////////////////////////
 
 def  : WriteRes<WriteFLoad,        [JLAGU, JFPU01, JFPX]> { let Latency = 5; }
@@ -311,7 +309,6 @@ defm : JWriteResFpuPair<WriteFVarShuffle256, [JFPU01, JFPX],  1>; // NOTE: Doesn
 
 ////////////////////////////////////////////////////////////////////////////////
 // Conversions.
-// FIXME: integer pipes
 ////////////////////////////////////////////////////////////////////////////////
 
 defm : JWriteResFpuPair<WriteCvtF2I,       [JFPU1, JSTC], 3>; // Float -> Integer.
@@ -344,7 +341,7 @@ def JWriteCVTF2SILd : SchedWriteRes<[JLAGU, JFPU1, JSTC, JFPA, JALU0]> {
 }
 def : InstRW<[JWriteCVTF2SILd], (instregex "(V)?CVT(T?)S(D|S)2SI(64)?rm")>;
 
-// FIXME: f+3 ST,LD+STC latency
+// FIXME: f+3 ST, LD+STC latency
 def JWriteCVTSI2F : SchedWriteRes<[JFPU1, JSTC]> {
   let Latency = 9;
   let NumMicroOps = 2;
-- 
2.7.4