From 523fd335b10757b0ca58713e211ac5a8b5f34212 Mon Sep 17 00:00:00 2001
From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Sun, 22 Apr 2018 10:03:52 +0000
Subject: [PATCH] [X86][SandyBridge] Remove unnecessary WritePOPCNTLd overrides
 by fixing load latency.

llvm-svn: 330541
---
 llvm/lib/Target/X86/X86SchedSandyBridge.td | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/llvm/lib/Target/X86/X86SchedSandyBridge.td b/llvm/lib/Target/X86/X86SchedSandyBridge.td
index 1175f74..6599507 100644
--- a/llvm/lib/Target/X86/X86SchedSandyBridge.td
+++ b/llvm/lib/Target/X86/X86SchedSandyBridge.td
@@ -126,7 +126,7 @@ def : WriteRes<WriteLEA, [SBPort15]>;
 defm : SBWriteResPair<WriteBitScan, [SBPort1], 3, [1], 1, 5>;
 defm : SBWriteResPair<WriteLZCNT,   [SBPort1], 3, [1], 1, 5>;
 defm : SBWriteResPair<WriteTZCNT,   [SBPort1], 3, [1], 1, 5>;
-defm : SBWriteResPair<WritePOPCNT,  [SBPort1], 3, [1], 1, 5>;
+defm : SBWriteResPair<WritePOPCNT,  [SBPort1], 3, [1], 1, 6>;
 
 // BMI1 BEXTR, BMI2 BZHI
 // NOTE: These don't exist on Sandy Bridge. Ports are guesses.
@@ -1392,7 +1392,6 @@ def SBWriteResGroup90 : SchedWriteRes<[SBPort1,SBPort23]> {
 }
 def: InstRW<[SBWriteResGroup90], (instregex "MMX_CVTPS2PIirm",
                                             "MMX_CVTTPS2PIirm",
-                                            "POPCNT(16|32|64)rm",
                                             "(V?)ADDPDrm",
                                             "(V?)ADDPSrm",
                                             "(V?)ADDSDrm",
-- 
2.7.4