Combine allocas

src/IceTargetLoweringX8632Traits.h

Index: src/IceTargetLoweringX8632Traits.h
diff --git a/src/IceTargetLoweringX8632Traits.h b/src/IceTargetLoweringX8632Traits.h
index cd2670207e6a71deb4ca5a6b9cbd9617d25c7ab5..1a25de82ba6f8c5b1e5d00bc1c5e00edd1a19e0e 100644
--- a/src/IceTargetLoweringX8632Traits.h
+++ b/src/IceTargetLoweringX8632Traits.h
@@ -735,7 +735,7 @@ template <> struct MachineTraits<TargetX8632> {
     uint16_t getShift() const { return Shift; }
     SegmentRegisters getSegmentRegister() const { return SegmentReg; }
     void emitSegmentOverride(Assembler *Asm) const;
-    Address toAsmAddress(Assembler *Asm) const;
+    Address toAsmAddress(Assembler *Asm, Ice::TargetLowering *Target) const;

[Jim Stichnoth, 2015/11/11 17:39:45]

Maybe const ... *Target ?

[sehr, 2015/11/11 22:14:11]

Done.

 
     void emit(const Cfg *Func) const override;
     using X86Operand::dump;
@@ -749,6 +749,9 @@ template <> struct MachineTraits<TargetX8632> {
 
     bool getRandomized() const { return Randomized; }
 
+    void setIgnoreStackAdjust(bool Ignore) { IgnoreStackAdjust = Ignore; }

[Jim Stichnoth, 2015/11/11 17:39:45]

I think you should add this stuff to X8664, even though it's not currently
tested.

[sehr, 2015/11/11 22:14:10]

Done.

+    bool getIgnoreStackAdjust() const { return IgnoreStackAdjust; }
+
   private:
     X86OperandMem(Cfg *Func, Type Ty, Variable *Base, Constant *Offset,
                   Variable *Index, uint16_t Shift, SegmentRegisters SegmentReg);
@@ -762,6 +765,11 @@ template <> struct MachineTraits<TargetX8632> {
     /// memory operands are generated in
     /// TargetX86Base::randomizeOrPoolImmediate()
     bool Randomized;
+    /// Memory operations involving the stack pointer need to know when the
+    /// stack pointer was moved temporarily.  Ignore that adjustment in
+    /// cases that should be pinned to the stack pointer, such as outgoing
+    /// arguments to calls.
+    bool IgnoreStackAdjust = false;
   };
 
   /// VariableSplit is a way to treat an f64 memory location as a pair of i32