From: Tim Northover <tnorthover@apple.com>
Date: Fri, 16 May 2014 09:41:21 +0000 (+0000)
Subject: AArch64: disable printing of MOV -> MOVZ aliases
X-Git-Tag: android-x86-7.1-r4~61611
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=78a667d085427c8a1e3db9e235f98a09372bdd21;p=android-x86%2Fexternal-llvm.git

AArch64: disable printing of MOV -> MOVZ aliases

Actually, MOV sometimes is canonical, but for now this is a better
approximation than what's there.

This will be tested when the TableGen "should I print this Alias" heuristic is
fixed (very soon).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208962 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/AArch64/AArch64InstrInfo.td b/lib/Target/AArch64/AArch64InstrInfo.td
index c4e43e1a8f8..e1aa60adde6 100644
--- a/lib/Target/AArch64/AArch64InstrInfo.td
+++ b/lib/Target/AArch64/AArch64InstrInfo.td
@@ -4210,7 +4210,7 @@ defm movn64 : movalias_operand<"movn64", "MOVN", "isOnlyMOVNImm", 64>;
 // will need to be implemented. to allow it, as well as the more generally
 // useful handling of non-register, non-constant operands.
 class movalias<Instruction INST, RegisterClass GPR, Operand operand>
-  : InstAlias<"mov $Rd, $FullImm", (INST GPR:$Rd, operand:$FullImm)>;
+  : InstAlias<"mov $Rd, $FullImm", (INST GPR:$Rd, operand:$FullImm), 0>;
 
 def : movalias<MOVZwii, GPR32, movz32_movimm>;
 def : movalias<MOVZxii, GPR64, movz64_movimm>;