From fc2931375d6ca8ab4d45cb820d91c7c88469f012 Mon Sep 17 00:00:00 2001
From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Mon, 10 Sep 2018 10:45:04 +0000
Subject: [PATCH] [llvm-exegesis] Ignore double spaced separators in asm
 strings

Some asm has double spaces between operands, the deserializer was keeping these empty split pieces, causing assertions later on:

'ADC16mi RDI i_0x1x  i_0x0x  i_0x1x'

llvm-svn: 341799
---
 llvm/tools/llvm-exegesis/lib/BenchmarkResult.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/llvm/tools/llvm-exegesis/lib/BenchmarkResult.cpp b/llvm/tools/llvm-exegesis/lib/BenchmarkResult.cpp
index 33ad65075d92..77adb2f1e38d 100644
--- a/llvm/tools/llvm-exegesis/lib/BenchmarkResult.cpp
+++ b/llvm/tools/llvm-exegesis/lib/BenchmarkResult.cpp
@@ -60,7 +60,7 @@ static llvm::StringRef
 deserialize(const exegesis::BenchmarkResultContext &Context,
             llvm::StringRef String, llvm::MCInst &Value) {
   llvm::SmallVector<llvm::StringRef, 8> Pieces;
-  String.split(Pieces, " ");
+  String.split(Pieces, " ", /* MaxSplit */ -1, /* KeepEmpty */ false);
   if (Pieces.empty())
     return "Invalid Instruction";
   bool ProcessOpcode = true;