[PATCH] D78877: [ARM] Only produce qadd8b under hasV6Ops

[Dave Green via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rG8807139026b6: [ARM] Only produce qadd8b under hasV6Ops (authored by dmgreen).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D78877/new/

https://reviews.llvm.org/D78877

Files:
  llvm/lib/Target/ARM/ARMISelLowering.cpp
  llvm/test/CodeGen/ARM/sadd_sat.ll


Index: llvm/test/CodeGen/ARM/sadd_sat.ll
===================================================================
--- llvm/test/CodeGen/ARM/sadd_sat.ll
+++ llvm/test/CodeGen/ARM/sadd_sat.ll
@@ -4,6 +4,7 @@
 ; RUN: llc < %s -mtriple=thumbv7em-none-eabi | FileCheck %s --check-prefix=CHECK-T2 --check-prefix=CHECK-T2DSP
 ; RUN: llc < %s -mtriple=armv5t-none-eabi | FileCheck %s --check-prefix=CHECK-ARM --check-prefix=CHECK-ARMNODPS
 ; RUN: llc < %s -mtriple=armv5te-none-eabi | FileCheck %s --check-prefix=CHECK-ARM --check-prefix=CHECK-ARMBASEDSP
+; RUN: llc < %s -mtriple=armv5te-none-eabi -mattr=+dsp | FileCheck %s --check-prefix=CHECK-ARM --check-prefix=CHECK-ARMBASEDSP
 ; RUN: llc < %s -mtriple=armv6-none-eabi | FileCheck %s --check-prefix=CHECK-ARM --check-prefix=CHECK-ARMDSP
 
 declare i4 @llvm.sadd.sat.i4(i4, i4)
Index: llvm/lib/Target/ARM/ARMISelLowering.cpp
===================================================================
--- llvm/lib/Target/ARM/ARMISelLowering.cpp
+++ llvm/lib/Target/ARM/ARMISelLowering.cpp
@@ -4586,7 +4586,7 @@
 static SDValue LowerSADDSUBSAT(SDValue Op, SelectionDAG &DAG,
                                const ARMSubtarget *Subtarget) {
   EVT VT = Op.getValueType();
-  if (!Subtarget->hasDSP())
+  if (!Subtarget->hasV6Ops() || !Subtarget->hasDSP())
     return SDValue();
   if (!VT.isSimple())
     return SDValue();


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