[PATCH] D125565: [AMDGPU] Extract SIInstrInfo::removeModOperands. NFC.

[Jay Foad via Phabricator via llvm-commits]

foad updated this revision to Diff 429534.
foad added a comment.

Make ModifierOpNames a constexpr.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D125565/new/

https://reviews.llvm.org/D125565

Files:
  llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
  llvm/lib/Target/AMDGPU/SIInstrInfo.h


Index: llvm/lib/Target/AMDGPU/SIInstrInfo.h
===================================================================
--- llvm/lib/Target/AMDGPU/SIInstrInfo.h
+++ llvm/lib/Target/AMDGPU/SIInstrInfo.h
@@ -337,6 +337,8 @@
 
   static bool isFoldableCopy(const MachineInstr &MI);
 
+  void removeModOperands(MachineInstr &MI) const;
+
   bool FoldImmediate(MachineInstr &UseMI, MachineInstr &DefMI, Register Reg,
                      MachineRegisterInfo *MRI) const final;
 
Index: llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
===================================================================
--- llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
+++ llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
@@ -2900,18 +2900,15 @@
   return AMDGPUAS::FLAT_ADDRESS;
 }
 
-static void removeModOperands(MachineInstr &MI) {
-  unsigned Opc = MI.getOpcode();
-  int Src0ModIdx = AMDGPU::getNamedOperandIdx(Opc,
-                                              AMDGPU::OpName::src0_modifiers);
-  int Src1ModIdx = AMDGPU::getNamedOperandIdx(Opc,
-                                              AMDGPU::OpName::src1_modifiers);
-  int Src2ModIdx = AMDGPU::getNamedOperandIdx(Opc,
-                                              AMDGPU::OpName::src2_modifiers);
+static constexpr unsigned ModifierOpNames[] = {
+    AMDGPU::OpName::src0_modifiers, AMDGPU::OpName::src1_modifiers,
+    AMDGPU::OpName::src2_modifiers, AMDGPU::OpName::clamp,
+    AMDGPU::OpName::omod};
 
-  MI.removeOperand(Src2ModIdx);
-  MI.removeOperand(Src1ModIdx);
-  MI.removeOperand(Src0ModIdx);
+void SIInstrInfo::removeModOperands(MachineInstr &MI) const {
+  unsigned Opc = MI.getOpcode();
+  for (unsigned Name : reverse(ModifierOpNames))
+    MI.removeOperand(AMDGPU::getNamedOperandIdx(Opc, Name));
 }
 
 bool SIInstrInfo::FoldImmediate(MachineInstr &UseMI, MachineInstr &DefMI,
@@ -3024,12 +3021,6 @@
       // FIXME: This would be a lot easier if we could return a new instruction
       // instead of having to modify in place.
 
-      // Remove these first since they are at the end.
-      UseMI.removeOperand(
-          AMDGPU::getNamedOperandIdx(Opc, AMDGPU::OpName::omod));
-      UseMI.removeOperand(
-          AMDGPU::getNamedOperandIdx(Opc, AMDGPU::OpName::clamp));
-
       Register Src1Reg = Src1->getReg();
       unsigned Src1SubReg = Src1->getSubReg();
       Src0->setReg(Src1Reg);
@@ -3107,12 +3098,6 @@
       // FIXME: This would be a lot easier if we could return a new instruction
       // instead of having to modify in place.
 
-      // Remove these first since they are at the end.
-      UseMI.removeOperand(
-          AMDGPU::getNamedOperandIdx(Opc, AMDGPU::OpName::omod));
-      UseMI.removeOperand(
-          AMDGPU::getNamedOperandIdx(Opc, AMDGPU::OpName::clamp));
-
       if (Opc == AMDGPU::V_MAC_F32_e64 ||
           Opc == AMDGPU::V_MAC_F16_e64 ||
           Opc == AMDGPU::V_FMAC_F32_e64 ||
@@ -3787,11 +3772,8 @@
 }
 
 bool SIInstrInfo::hasAnyModifiersSet(const MachineInstr &MI) const {
-  return hasModifiersSet(MI, AMDGPU::OpName::src0_modifiers) ||
-         hasModifiersSet(MI, AMDGPU::OpName::src1_modifiers) ||
-         hasModifiersSet(MI, AMDGPU::OpName::src2_modifiers) ||
-         hasModifiersSet(MI, AMDGPU::OpName::clamp) ||
-         hasModifiersSet(MI, AMDGPU::OpName::omod);
+  return any_of(ModifierOpNames,
+                [&](unsigned Name) { return hasModifiersSet(MI, Name); });
 }
 
 bool SIInstrInfo::canShrink(const MachineInstr &MI,


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