[AMDGPU][NFC] Rename ReserveTrapVGPRs -> ReserveRegs

Differential Revision: http://reviews.llvm.org/D20081

llvm-svn: 270594

7 files changed, 25 insertions, 23 deletions

diff --git a/llvm/lib/Target/AMDGPU/AMDGPU.td b/llvm/lib/Target/AMDGPU/AMDGPU.td
index a6e862eb2fb..c827ed77a10 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPU.td
+++ b/llvm/lib/Target/AMDGPU/AMDGPU.td
@@ -328,11 +328,11 @@ def FeatureDebuggerInsertNops : SubtargetFeature<
   "Insert one nop instruction for each high level source statement"
 >;
 
-def FeatureDebuggerReserveTrapRegs : SubtargetFeature<
-  "amdgpu-debugger-reserve-trap-regs",
-  "DebuggerReserveTrapVGPRs",
+def FeatureDebuggerReserveRegs : SubtargetFeature<
+  "amdgpu-debugger-reserve-regs",
+  "DebuggerReserveRegs",
   "true",
-  "Reserve VGPRs for trap handler usage"
+  "Reserve registers for debugger usage"
 >;
 
 //===----------------------------------------------------------------------===//
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp b/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
index 73803441f48..f4a17b90411 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
@@ -435,12 +435,13 @@ void AMDGPUAsmPrinter::getSIProgramInfo(SIProgramInfo &ProgInfo,
 
   MaxSGPR += ExtraSGPRs;
 
-  // Update necessary Reserved* fields and max VGPRs used if
-  // "amdgpu-debugger-reserve-trap-regs" attribute was specified.
-  if (STM.debuggerReserveTrapVGPRs()) {
+  // Record first reserved register and reserved register count fields, and
+  // update max register counts if "amdgpu-debugger-reserve-regs" attribute was
+  // specified.
+  if (STM.debuggerReserveRegs()) {
     ProgInfo.ReservedVGPRFirst = MaxVGPR + 1;
-    ProgInfo.ReservedVGPRCount = MFI->getDebuggerReserveTrapVGPRCount();
-    MaxVGPR += MFI->getDebuggerReserveTrapVGPRCount();
+    ProgInfo.ReservedVGPRCount = MFI->getDebuggerReservedVGPRCount();
+    MaxVGPR += MFI->getDebuggerReservedVGPRCount();
   }
 
   // We found the maximum register index. They start at 0, so add one to get the
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.cpp b/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.cpp
index 2357e037458..030bebcd1c0 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.cpp
@@ -98,7 +98,7 @@ AMDGPUSubtarget::AMDGPUSubtarget(const Triple &TT, StringRef GPU, StringRef FS,
       LDSBankCount(0),
       IsaVersion(ISAVersion0_0_0),
       EnableSIScheduler(false),
-      DebuggerInsertNops(false), DebuggerReserveTrapVGPRs(false),
+      DebuggerInsertNops(false), DebuggerReserveRegs(false),
       FrameLowering(nullptr),
       GISel(),
       InstrItins(getInstrItineraryForCPU(GPU)), TargetTriple(TT) {
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.h b/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.h
index 6cd18454829..ec7da3ac6d6 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.h
+++ b/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.h
@@ -96,7 +96,7 @@ private:
   unsigned IsaVersion;
   bool EnableSIScheduler;
   bool DebuggerInsertNops;
-  bool DebuggerReserveTrapVGPRs;
+  bool DebuggerReserveRegs;
 
   std::unique_ptr<AMDGPUFrameLowering> FrameLowering;
   std::unique_ptr<AMDGPUTargetLowering> TLInfo;
@@ -319,8 +319,8 @@ public:
     return DebuggerInsertNops;
   }
 
-  bool debuggerReserveTrapVGPRs() const {
-    return DebuggerReserveTrapVGPRs;
+  bool debuggerReserveRegs() const {
+    return DebuggerReserveRegs;
   }
 
   bool dumpCode() const {
diff --git a/llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.cpp b/llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.cpp
index d10a9c1a846..2b7c0f3a2e8 100644
--- a/llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.cpp
@@ -49,7 +49,7 @@ SIMachineFunctionInfo::SIMachineFunctionInfo(const MachineFunction &MF)
     PSInputAddr(0),
     ReturnsVoid(true),
     MaximumWorkGroupSize(0),
-    DebuggerReserveTrapVGPRCount(0),
+    DebuggerReservedVGPRCount(0),
     LDSWaveSpillSize(0),
     PSInputEna(0),
     NumUserSGPRs(0),
@@ -134,8 +134,8 @@ SIMachineFunctionInfo::SIMachineFunctionInfo(const MachineFunction &MF)
   else
     MaximumWorkGroupSize = ST.getWavefrontSize();
 
-  if (ST.debuggerReserveTrapVGPRs())
-    DebuggerReserveTrapVGPRCount = 4;
+  if (ST.debuggerReserveRegs())
+    DebuggerReservedVGPRCount = 4;
 }
 
 unsigned SIMachineFunctionInfo::addPrivateSegmentBuffer(
diff --git a/llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.h b/llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.h
index 04437f1d894..ee2f722aba5 100644
--- a/llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.h
+++ b/llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.h
@@ -62,8 +62,8 @@ class SIMachineFunctionInfo final : public AMDGPUMachineFunction {
 
   unsigned MaximumWorkGroupSize;
 
-  // Number of reserved VGPRs for trap handler usage.
-  unsigned DebuggerReserveTrapVGPRCount;
+  // Number of reserved VGPRs for debugger usage.
+  unsigned DebuggerReservedVGPRCount;
 
 public:
   // FIXME: Make private
@@ -329,8 +329,9 @@ public:
     ReturnsVoid = Value;
   }
 
-  unsigned getDebuggerReserveTrapVGPRCount() const {
-    return DebuggerReserveTrapVGPRCount;
+  /// \returns Number of reserved VGPRs for debugger usage.
+  unsigned getDebuggerReservedVGPRCount() const {
+    return DebuggerReservedVGPRCount;
   }
 
   unsigned getMaximumWorkGroupSize(const MachineFunction &MF) const;
diff --git a/llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp b/llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp
index ee371177494..477792da7bf 100644
--- a/llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp
@@ -193,12 +193,12 @@ BitVector SIRegisterInfo::getReservedRegs(const MachineFunction &MF) const {
     assert(!isSubRegister(ScratchRSrcReg, ScratchWaveOffsetReg));
   }
 
-  // Reserve VGPRs for trap handler usage if "amdgpu-debugger-reserve-trap-regs"
+  // Reserve registers for debugger usage if "amdgpu-debugger-reserve-trap-regs"
   // attribute was specified.
   const AMDGPUSubtarget &ST = MF.getSubtarget<AMDGPUSubtarget>();
-  if (ST.debuggerReserveTrapVGPRs()) {
+  if (ST.debuggerReserveRegs()) {
     unsigned ReservedVGPRFirst =
-      MaxWorkGroupVGPRCount - MFI->getDebuggerReserveTrapVGPRCount();
+      MaxWorkGroupVGPRCount - MFI->getDebuggerReservedVGPRCount();
     for (unsigned i = ReservedVGPRFirst; i < MaxWorkGroupVGPRCount; ++i) {
       unsigned Reg = AMDGPU::VGPR_32RegClass.getRegister(i);
       reserveRegisterTuples(Reserved, Reg);