From 8619962c733e1ce5c4becc4b8bf6bd4a62b46f78 Mon Sep 17 00:00:00 2001
From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Fri, 23 Mar 2018 14:27:26 +0000
Subject: [X86][Btver2] Cleanup SSE42 PCMPISTR/PCMPESTR string instructions to
 correctly use JFPU1 scheduler pipe followed by JLAGU/JSAGU/JFPA/JVALU
 function units

Fixes throughput to match Agner/Fam16h-SoG as well.

llvm-svn: 328318
---
 llvm/lib/Target/X86/X86ScheduleBtVer2.td | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

(limited to 'llvm/lib/Target')

diff --git a/llvm/lib/Target/X86/X86ScheduleBtVer2.td b/llvm/lib/Target/X86/X86ScheduleBtVer2.td
index f4289803c88..47a4d67d39d 100644
--- a/llvm/lib/Target/X86/X86ScheduleBtVer2.td
+++ b/llvm/lib/Target/X86/X86ScheduleBtVer2.td
@@ -343,13 +343,13 @@ defm : JWriteResFpuPair<WriteVarVecShift, [JFPU01, JVALU], 1>; // NOTE: Doesn't
 
 ////////////////////////////////////////////////////////////////////////////////
 // SSE42 String instructions.
-// FIXME: approximate latencies + pipe dependencies
+// FIXME: Latency+i
 ////////////////////////////////////////////////////////////////////////////////
 
-defm : JWriteResFpuPair<WritePCmpIStrI, [JFPU1, JFPU0], 7, [2, 2], 3>;
-defm : JWriteResFpuPair<WritePCmpIStrM, [JFPU1, JFPU0], 8, [2, 2], 3>;
-defm : JWriteResFpuPair<WritePCmpEStrI, [JFPU1, JLAGU, JFPU01, JFPU1, JFPU0], 14, [5, 5, 5, 5, 5], 9>;
-defm : JWriteResFpuPair<WritePCmpEStrM, [JFPU1, JLAGU, JFPU01, JFPU1, JFPU0], 14, [5, 5, 5, 5, 5], 9>;
+defm : JWriteResFpuPair<WritePCmpIStrI, [JFPU1, JVALU1, JFPA], 7, [1, 2, 1], 3>;
+defm : JWriteResFpuPair<WritePCmpIStrM, [JFPU1, JVALU1, JFPA], 8, [1, 2, 1], 3>;
+defm : JWriteResFpuPair<WritePCmpEStrI, [JFPU1, JSAGU, JLAGU, JVALU, JVALU1, JFPA], 14, [1, 2, 2, 6, 4, 1], 9>;
+defm : JWriteResFpuPair<WritePCmpEStrM, [JFPU1, JSAGU, JLAGU, JVALU, JVALU1, JFPA], 14, [1, 2, 2, 6, 4, 1], 9>;
 
 ////////////////////////////////////////////////////////////////////////////////
 // AES Instructions.
-- 
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