[PATCH] D83204: [ARM] More unpredictable VCVT instructions.

[Dave Green via Phabricator via llvm-commits]

dmgreen updated this revision to Diff 278662.
dmgreen added a comment.

Move to AVConv1InsS_Encode.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D83204/new/

https://reviews.llvm.org/D83204

Files:
  llvm/lib/Target/ARM/ARMInstrVFP.td
  llvm/test/CodeGen/Thumb2/mve-vcvt.ll
  llvm/unittests/Target/ARM/MachineInstrTest.cpp


Index: llvm/unittests/Target/ARM/MachineInstrTest.cpp
===================================================================
--- llvm/unittests/Target/ARM/MachineInstrTest.cpp
+++ llvm/unittests/Target/ARM/MachineInstrTest.cpp
@@ -1103,8 +1103,8 @@
 
   for (unsigned Op = 0; Op < ARM::INSTRUCTION_LIST_END; ++Op) {
     const MCInstrDesc &Desc = TII->get(Op);
-    if ((Desc.TSFlags & ARMII::DomainMask) != ARMII::DomainMVE &&
-        (Desc.TSFlags & ARMII::DomainMask) != ARMII::DomainVFP)
+    if ((Desc.TSFlags &
+         (ARMII::DomainMVE | ARMII::DomainVFP | ARMII::DomainNEONA8)) == 0)
       continue;
     if (UnpredictableOpcodes.count(Op))
       continue;
Index: llvm/test/CodeGen/Thumb2/mve-vcvt.ll
===================================================================
--- llvm/test/CodeGen/Thumb2/mve-vcvt.ll
+++ llvm/test/CodeGen/Thumb2/mve-vcvt.ll
@@ -45,8 +45,8 @@
 ; CHECK-MVE:       @ %bb.0: @ %entry
 ; CHECK-MVE-NEXT:    vcvt.s32.f32 s4, s0
 ; CHECK-MVE-NEXT:    vcvt.s32.f32 s6, s1
-; CHECK-MVE-NEXT:    vcvt.s32.f32 s8, s3
 ; CHECK-MVE-NEXT:    vcvt.s32.f32 s10, s2
+; CHECK-MVE-NEXT:    vcvt.s32.f32 s8, s3
 ; CHECK-MVE-NEXT:    vmov r0, s4
 ; CHECK-MVE-NEXT:    vmov.32 q0[0], r0
 ; CHECK-MVE-NEXT:    vmov r0, s6
@@ -71,8 +71,8 @@
 ; CHECK-MVE:       @ %bb.0: @ %entry
 ; CHECK-MVE-NEXT:    vcvt.u32.f32 s4, s0
 ; CHECK-MVE-NEXT:    vcvt.u32.f32 s6, s1
-; CHECK-MVE-NEXT:    vcvt.u32.f32 s8, s3
 ; CHECK-MVE-NEXT:    vcvt.u32.f32 s10, s2
+; CHECK-MVE-NEXT:    vcvt.u32.f32 s8, s3
 ; CHECK-MVE-NEXT:    vmov r0, s4
 ; CHECK-MVE-NEXT:    vmov.32 q0[0], r0
 ; CHECK-MVE-NEXT:    vmov r0, s6
Index: llvm/lib/Target/ARM/ARMInstrVFP.td
===================================================================
--- llvm/lib/Target/ARM/ARMInstrVFP.td
+++ llvm/lib/Target/ARM/ARMInstrVFP.td
@@ -1551,6 +1551,8 @@
   let Inst{5}     = Sm{0};
   let Inst{15-12} = Sd{4-1};
   let Inst{22}    = Sd{0};
+
+  let hasSideEffects = 0;
 }
 
 class AVConv1IsH_Encode<bits<5> opcod1, bits<2> opcod2, bits<4> opcod3,


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