From 976c0da213bb9a4f07d4ca2a82765b5e590be05d Mon Sep 17 00:00:00 2001
From: Jim Grosbach <grosbach@apple.com>
Date: Thu, 8 Dec 2011 22:51:25 +0000
Subject: [PATCH] ARM convenience aliases for VSQRT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146201 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/ARM/ARMInstrVFP.td             | 6 ++++++
 lib/Target/ARM/AsmParser/ARMAsmParser.cpp | 2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/lib/Target/ARM/ARMInstrVFP.td b/lib/Target/ARM/ARMInstrVFP.td
index 7ab2b88a1e1..828b9a2bb34 100644
--- a/lib/Target/ARM/ARMInstrVFP.td
+++ b/lib/Target/ARM/ARMInstrVFP.td
@@ -1168,9 +1168,15 @@ def : MnemonicAlias<"flds", "vldr">;
 def : MnemonicAlias<"fldd", "vldr">;
 def : MnemonicAlias<"fmrs", "vmov">;
 def : MnemonicAlias<"fmsr", "vmov">;
+def : MnemonicAlias<"fsqrts", "vsqrt">;
+def : MnemonicAlias<"fsqrtd", "vsqrt">;
 
 def : VFP2InstAlias<"fmstat${p}", (FMSTAT pred:$p)>;
 
+// No need for the size suffix on VSQRT. It's implied by the register classes.
+def : VFP2InstAlias<"vsqrt${p} $Sd, $Sm", (VSQRTS SPR:$Sd, SPR:$Sm, pred:$p)>;
+def : VFP2InstAlias<"vsqrt${p} $Dd, $Dm", (VSQRTD DPR:$Dd, DPR:$Dm, pred:$p)>;
+
 // VLDR/VSTR accept an optional type suffix.
 def : VFP2InstAlias<"vldr${p}.32 $Sd, $addr",
                     (VLDRS SPR:$Sd, addrmode5:$addr, pred:$p)>;
diff --git a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index 6077c94c672..aa65e747e41 100644
--- a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -4296,7 +4296,7 @@ StringRef ARMAsmParser::splitMnemonic(StringRef Mnemonic,
         Mnemonic == "vcls" || Mnemonic == "vmls" || Mnemonic == "vmrs" ||
         Mnemonic == "vnmls" || Mnemonic == "vqabs" || Mnemonic == "vrecps" ||
         Mnemonic == "vrsqrts" || Mnemonic == "srs" || Mnemonic == "flds" ||
-        Mnemonic == "fmrs" ||
+        Mnemonic == "fmrs" || Mnemonic == "fsqrts" ||
         (Mnemonic == "movs" && isThumb()))) {
     Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 1);
     CarrySetting = true;