[AMDGPU] Remove FeatureVGPRSpilling

This feature is only relevant to shaders, and is no longer used. When disabled,
lowering of reserved registers for shaders causes a compiler crash.

Remove the feature and add a test for compilation of shaders at OptNone.

Differential Revision: https://reviews.llvm.org/D53829

llvm-svn: 345763

1 files changed, 3 insertions, 5 deletions

diff --git a/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp b/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
index 7448dd71004..d07c0516c27 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
@@ -1008,7 +1008,6 @@ static unsigned getRsrcReg(CallingConv::ID CallConv) {
 
 void AMDGPUAsmPrinter::EmitProgramInfoSI(const MachineFunction &MF,
                                          const SIProgramInfo &CurrentProgramInfo) {
-  const GCNSubtarget &STM = MF.getSubtarget<GCNSubtarget>();
   const SIMachineFunctionInfo *MFI = MF.getInfo<SIMachineFunctionInfo>();
   unsigned RsrcReg = getRsrcReg(MF.getFunction().getCallingConv());
 
@@ -1029,10 +1028,9 @@ void AMDGPUAsmPrinter::EmitProgramInfoSI(const MachineFunction &MF,
     OutStreamer->EmitIntValue(RsrcReg, 4);
     OutStreamer->EmitIntValue(S_00B028_VGPRS(CurrentProgramInfo.VGPRBlocks) |
                               S_00B028_SGPRS(CurrentProgramInfo.SGPRBlocks), 4);
-    if (STM.isVGPRSpillingEnabled(MF.getFunction())) {
-      OutStreamer->EmitIntValue(R_0286E8_SPI_TMPRING_SIZE, 4);
-      OutStreamer->EmitIntValue(S_0286E8_WAVESIZE(CurrentProgramInfo.ScratchBlocks), 4);
-    }
+    OutStreamer->EmitIntValue(R_0286E8_SPI_TMPRING_SIZE, 4);
+    OutStreamer->EmitIntValue(
+        S_0286E8_WAVESIZE(CurrentProgramInfo.ScratchBlocks), 4);
   }
 
   if (MF.getFunction().getCallingConv() == CallingConv::AMDGPU_PS) {