Subzero. ARM32. Improve constant lowering.

src/IceTargetLoweringARM32.h

Index: src/IceTargetLoweringARM32.h
diff --git a/src/IceTargetLoweringARM32.h b/src/IceTargetLoweringARM32.h
index 969e17a6b49c9ac8cdfdfcbfa400a53a058b1551..743fdfb83f12fb6ad70d616abc50f6040949d020 100644
--- a/src/IceTargetLoweringARM32.h
+++ b/src/IceTargetLoweringARM32.h
@@ -142,6 +142,8 @@ protected:
 
   void lowerAlloca(const InstAlloca *Inst) override;
   SafeBoolChain lowerInt1Arithmetic(const InstArithmetic *Inst);
+  void lowerInt64Arithmetic(InstArithmetic::OpKind Op, Variable *Dest,
+                            Operand *Src0, Operand *Src1);
   void lowerArithmetic(const InstArithmetic *Inst) override;
   void lowerAssign(const InstAssign *Inst) override;
   void lowerBr(const InstBr *Inst) override;
@@ -180,6 +182,8 @@ protected:
 
   CondWhenTrue lowerFcmpCond(const InstFcmp *Instr);
   void lowerFcmp(const InstFcmp *Instr) override;
+  CondWhenTrue lowerInt64IcmpCond(InstIcmp::ICond Condition, Operand *Src0,
+                                  Operand *Src1);
   CondWhenTrue lowerIcmpCond(const InstIcmp *Instr);
   void lowerIcmp(const InstIcmp *Instr) override;
   void lowerAtomicRMW(Variable *Dest, uint32_t Operation, Operand *Ptr,
@@ -320,6 +324,12 @@ protected:
             CondARM32::Cond Pred = CondARM32::AL) {
     Context.insert(InstARM32Lsl::create(Func, Dest, Src0, Src1, Pred));
   }
+  void _lsls(Variable *Dest, Variable *Src0, Operand *Src1,
+             CondARM32::Cond Pred = CondARM32::AL) {
+    constexpr bool SetFlags = true;
+    Context.insert(
+        InstARM32Lsl::create(Func, Dest, Src0, Src1, Pred, SetFlags));
+  }
   void _lsr(Variable *Dest, Variable *Src0, Operand *Src1,
             CondARM32::Cond Pred = CondARM32::AL) {
     Context.insert(InstARM32Lsr::create(Func, Dest, Src0, Src1, Pred));
@@ -642,6 +652,18 @@ protected:
   void _ret(Variable *LR, Variable *Src0 = nullptr) {
     Context.insert(InstARM32Ret::create(Func, LR, Src0));
   }
+  void _rscs(Variable *Dest, Variable *Src0, Operand *Src1,
+             CondARM32::Cond Pred = CondARM32::AL) {
+    constexpr bool SetFlags = true;
+    Context.insert(
+        InstARM32Rsc::create(Func, Dest, Src0, Src1, Pred, SetFlags));
+  }
+  void _rsbs(Variable *Dest, Variable *Src0, Operand *Src1,
+             CondARM32::Cond Pred = CondARM32::AL) {
+    constexpr bool SetFlags = true;
+    Context.insert(
+        InstARM32Rsb::create(Func, Dest, Src0, Src1, Pred, SetFlags));
+  }
   void _rsb(Variable *Dest, Variable *Src0, Operand *Src1,
             CondARM32::Cond Pred = CondARM32::AL) {
     Context.insert(InstARM32Rsb::create(Func, Dest, Src0, Src1, Pred));
@@ -733,6 +755,10 @@ protected:
              CondARM32::Cond Pred = CondARM32::AL) {
     Context.insert(InstARM32Vcmp::create(Func, Src0, Src1, Pred));
   }
+  void _vcmp(Variable *Src0, OperandARM32FlexFpZero *FpZero,
+             CondARM32::Cond Pred = CondARM32::AL) {
+    Context.insert(InstARM32Vcmp::create(Func, Src0, FpZero, Pred));
+  }
   void _vmrs(CondARM32::Cond Pred = CondARM32::AL) {
     Context.insert(InstARM32Vmrs::create(Func, Pred));
   }