[llvm] r322291 - [AArch64] Remove Unsupported = 1 flag for the WriteAtomic WriteRes.

[Joel Jones via llvm-commits]

Author: joel_k_jones
Date: Thu Jan 11 08:50:56 2018
New Revision: 322291

URL: http://llvm.org/viewvc/llvm-project?rev=322291&view=rev
Log:
[AArch64] Remove Unsupported = 1 flag for the WriteAtomic WriteRes.

In practice, this patch has no effect on scheduling.

There is no test case as there already exists a comprehensive test case for
LSE Atomics.

Patch by Stefan Teleman

Differential Revision: https://reviews.llvm.org/D40694

Modified:
    llvm/trunk/lib/Target/AArch64/AArch64SchedThunderX2T99.td

Modified: llvm/trunk/lib/Target/AArch64/AArch64SchedThunderX2T99.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AArch64/AArch64SchedThunderX2T99.td?rev=322291&r1=322290&r2=322291&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AArch64/AArch64SchedThunderX2T99.td (original)
+++ llvm/trunk/lib/Target/AArch64/AArch64SchedThunderX2T99.td Thu Jan 11 08:50:56 2018
@@ -391,7 +391,7 @@ def : WriteRes<WriteBarrier, []> { let L
 def : WriteRes<WriteHint,    []> { let Latency = 1; }
 
 def : WriteRes<WriteAtomic,  []> {
-  let Unsupported = 1;
+  let Latency = 4;
   let NumMicroOps = 2;
 }