AMDGPU: Also track whether SGPRs were spilled

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252145 91177308-0d34-0410-b5e6-96231b3b80d8
simoatze · Nov 5, 2015 · 26c7483 · 26c7483
1 parent 35a96b8
commit 26c7483
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Showing 3 changed files with 20 additions and 2 deletions.
diff --git a/lib/Target/AMDGPU/SIInstrInfo.cpp b/lib/Target/AMDGPU/SIInstrInfo.cpp
@@ -484,6 +484,8 @@ void SIInstrInfo::storeRegToStackSlot(MachineBasicBlock &MBB,
   int Opcode = -1;
 
   if (RI.isSGPRClass(RC)) {
+    MFI->setHasSpilledSGPRs();
+
     // We are only allowed to create one new instruction when spilling
     // registers, so we need to use pseudo instruction for spilling
     // SGPRs.

diff --git a/lib/Target/AMDGPU/SIMachineFunctionInfo.cpp b/lib/Target/AMDGPU/SIMachineFunctionInfo.cpp
@@ -29,6 +29,7 @@ void SIMachineFunctionInfo::anchor() {}
 SIMachineFunctionInfo::SIMachineFunctionInfo(const MachineFunction &MF)
   : AMDGPUMachineFunction(MF),
     TIDReg(AMDGPU::NoRegister),
+    HasSpilledSGPRs(false),
     HasSpilledVGPRs(false),
     PSInputAddr(0),
     NumUserSGPRs(0),

diff --git a/lib/Target/AMDGPU/SIMachineFunctionInfo.h b/lib/Target/AMDGPU/SIMachineFunctionInfo.h
@@ -29,6 +29,7 @@ class SIMachineFunctionInfo : public AMDGPUMachineFunction {
   void anchor() override;
 
   unsigned TIDReg;
+  bool HasSpilledSGPRs;
   bool HasSpilledVGPRs;
 
 public:
@@ -54,8 +55,22 @@ class SIMachineFunctionInfo : public AMDGPUMachineFunction {
   bool hasCalculatedTID() const { return TIDReg != AMDGPU::NoRegister; };
   unsigned getTIDReg() const { return TIDReg; };
   void setTIDReg(unsigned Reg) { TIDReg = Reg; }
-  bool hasSpilledVGPRs() const { return HasSpilledVGPRs; }
-  void setHasSpilledVGPRs(bool Spill = true) { HasSpilledVGPRs = Spill; }
+
+  bool hasSpilledSGPRs() const {
+    return HasSpilledSGPRs;
+  }
+
+  void setHasSpilledSGPRs(bool Spill = true) {
+    HasSpilledSGPRs = Spill;
+  }
+
+  bool hasSpilledVGPRs() const {
+    return HasSpilledVGPRs;
+  }
+
+  void setHasSpilledVGPRs(bool Spill = true) {
+    HasSpilledVGPRs = Spill;
+  }
 
   unsigned getMaximumWorkGroupSize(const MachineFunction &MF) const;
 };