[PATCH] D117757: [AArch64] Modeling NZCV read/write for MOPS instructions

[Son Tuan Vu via Phabricator via llvm-commits]

tyb0807 created this revision.
Herald added subscribers: hiraditya, kristof.beyls.
tyb0807 requested review of this revision.
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According to the specification, MOPS instructions define NZCV flags as
part of their semantics (see discussion in
https://reviews.llvm.org/D116157)

This is part 2/4 of a series of patches split from
https://reviews.llvm.org/D117405 to facilitate reviewing.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D117757

Files:
  llvm/lib/Target/AArch64/AArch64InstrFormats.td


Index: llvm/lib/Target/AArch64/AArch64InstrFormats.td
===================================================================
--- llvm/lib/Target/AArch64/AArch64InstrFormats.td
+++ llvm/lib/Target/AArch64/AArch64InstrFormats.td
@@ -11455,6 +11455,7 @@
   let DecoderMethod = "DecodeCPYMemOpInstruction";
   let mayLoad = 1;
   let mayStore = 1;
+  let Defs = [NZCV];
 }
 
 class MOPSMemoryCopy<bits<2> opcode, bits<2> op1, bits<2> op2, string asm>
@@ -11487,6 +11488,7 @@
   let DecoderMethod = "DecodeSETMemOpInstruction";
   let mayLoad = 0;
   let mayStore = 1;
+  let Defs = [NZCV];
 }
 
 class MOPSMemorySet<bits<2> opcode, bit op1, bit op2, string asm>


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