AMDGPU: Make isIntrinsicSourceOfDivergence table-driven

[nhaehnle]

Summary

This is in preparation for the new dimension-aware image intrinsics,
which I'd rather not have to list here by hand.

Change-Id: Iaa16e3a635a11283918ce0d9e1e618591b0bf6fa

[rampitec]

LGTM

llvm/trunk/lib/Target/AMDGPU/AMDGPUSearchableTables.td

class RsrcIntrinsic<AMDGPURsrcIntrinsic intr> : SearchableTable {
   bits<8> RsrcArg = intr.RsrcArg;
   bit IsImage = intr.IsImage;
 }
 
 foreach intr = !listconcat(AMDGPUBufferIntrinsics,
                            AMDGPUImageIntrinsics) in {
   def : RsrcIntrinsic<!cast<AMDGPURsrcIntrinsic>(intr)>;
 }
+
+class SourceOfDivergence<Intrinsic intr> : SearchableTable {
+  let SearchableFields = ["Intr"];
+  let EnumNameField = ?;
+
+  Intrinsic Intr = intr;
+}
+
+def : SourceOfDivergence<int_amdgcn_workitem_id_x>;
+def : SourceOfDivergence<int_amdgcn_workitem_id_y>;
+def : SourceOfDivergence<int_amdgcn_workitem_id_z>;
+def : SourceOfDivergence<int_amdgcn_interp_mov>;
+def : SourceOfDivergence<int_amdgcn_interp_p1>;
+def : SourceOfDivergence<int_amdgcn_interp_p2>;
+def : SourceOfDivergence<int_amdgcn_mbcnt_hi>;
+def : SourceOfDivergence<int_amdgcn_mbcnt_lo>;
+def : SourceOfDivergence<int_r600_read_tidig_x>;
+def : SourceOfDivergence<int_r600_read_tidig_y>;
+def : SourceOfDivergence<int_r600_read_tidig_z>;
+def : SourceOfDivergence<int_amdgcn_atomic_inc>;
+def : SourceOfDivergence<int_amdgcn_atomic_dec>;
+def : SourceOfDivergence<int_amdgcn_ds_fadd>;
+def : SourceOfDivergence<int_amdgcn_ds_fmin>;
+def : SourceOfDivergence<int_amdgcn_ds_fmax>;
+def : SourceOfDivergence<int_amdgcn_image_atomic_swap>;
+def : SourceOfDivergence<int_amdgcn_image_atomic_add>;
+def : SourceOfDivergence<int_amdgcn_image_atomic_sub>;
+def : SourceOfDivergence<int_amdgcn_image_atomic_smin>;
+def : SourceOfDivergence<int_amdgcn_image_atomic_umin>;
+def : SourceOfDivergence<int_amdgcn_image_atomic_smax>;
+def : SourceOfDivergence<int_amdgcn_image_atomic_umax>;
+def : SourceOfDivergence<int_amdgcn_image_atomic_and>;
+def : SourceOfDivergence<int_amdgcn_image_atomic_or>;
+def : SourceOfDivergence<int_amdgcn_image_atomic_xor>;
+def : SourceOfDivergence<int_amdgcn_image_atomic_inc>;
+def : SourceOfDivergence<int_amdgcn_image_atomic_dec>;
+def : SourceOfDivergence<int_amdgcn_image_atomic_cmpswap>;
+def : SourceOfDivergence<int_amdgcn_buffer_atomic_swap>;
+def : SourceOfDivergence<int_amdgcn_buffer_atomic_add>;
+def : SourceOfDivergence<int_amdgcn_buffer_atomic_sub>;
+def : SourceOfDivergence<int_amdgcn_buffer_atomic_smin>;
+def : SourceOfDivergence<int_amdgcn_buffer_atomic_umin>;
+def : SourceOfDivergence<int_amdgcn_buffer_atomic_smax>;
+def : SourceOfDivergence<int_amdgcn_buffer_atomic_umax>;
+def : SourceOfDivergence<int_amdgcn_buffer_atomic_and>;
+def : SourceOfDivergence<int_amdgcn_buffer_atomic_or>;
+def : SourceOfDivergence<int_amdgcn_buffer_atomic_xor>;
+def : SourceOfDivergence<int_amdgcn_buffer_atomic_cmpswap>;
+def : SourceOfDivergence<int_amdgcn_ps_live>;
+def : SourceOfDivergence<int_amdgcn_ds_swizzle>;

llvm/trunk/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp

 AMDGPUAS getAMDGPUAS(const TargetMachine &M) {
   return getAMDGPUAS(M.getTargetTriple());
 }
 
 AMDGPUAS getAMDGPUAS(const Module &M) {
   return getAMDGPUAS(Triple(M.getTargetTriple()));
 }
 
+namespace {
+
+struct SourceOfDivergence {
+  unsigned Intr;
+};
+const SourceOfDivergence *lookupSourceOfDivergenceByIntr(unsigned Intr);
+
+#define GET_SOURCEOFDIVERGENCE_IMPL
+#include "AMDGPUGenSearchableTables.inc"
+
+} // end anonymous namespace
+
 bool isIntrinsicSourceOfDivergence(unsigned IntrID) {
-  switch (IntrID) {
-  case Intrinsic::amdgcn_workitem_id_x:
-  case Intrinsic::amdgcn_workitem_id_y:
-  case Intrinsic::amdgcn_workitem_id_z:
-  case Intrinsic::amdgcn_interp_mov:
-  case Intrinsic::amdgcn_interp_p1:
-  case Intrinsic::amdgcn_interp_p2:
-  case Intrinsic::amdgcn_mbcnt_hi:
-  case Intrinsic::amdgcn_mbcnt_lo:
-  case Intrinsic::r600_read_tidig_x:
-  case Intrinsic::r600_read_tidig_y:
-  case Intrinsic::r600_read_tidig_z:
-  case Intrinsic::amdgcn_atomic_inc:
-  case Intrinsic::amdgcn_atomic_dec:
-  case Intrinsic::amdgcn_ds_fadd:
-  case Intrinsic::amdgcn_ds_fmin:
-  case Intrinsic::amdgcn_ds_fmax:
-  case Intrinsic::amdgcn_image_atomic_swap:
-  case Intrinsic::amdgcn_image_atomic_add:
-  case Intrinsic::amdgcn_image_atomic_sub:
-  case Intrinsic::amdgcn_image_atomic_smin:
-  case Intrinsic::amdgcn_image_atomic_umin:
-  case Intrinsic::amdgcn_image_atomic_smax:
-  case Intrinsic::amdgcn_image_atomic_umax:
-  case Intrinsic::amdgcn_image_atomic_and:
-  case Intrinsic::amdgcn_image_atomic_or:
-  case Intrinsic::amdgcn_image_atomic_xor:
-  case Intrinsic::amdgcn_image_atomic_inc:
-  case Intrinsic::amdgcn_image_atomic_dec:
-  case Intrinsic::amdgcn_image_atomic_cmpswap:
-  case Intrinsic::amdgcn_buffer_atomic_swap:
-  case Intrinsic::amdgcn_buffer_atomic_add:
-  case Intrinsic::amdgcn_buffer_atomic_sub:
-  case Intrinsic::amdgcn_buffer_atomic_smin:
-  case Intrinsic::amdgcn_buffer_atomic_umin:
-  case Intrinsic::amdgcn_buffer_atomic_smax:
-  case Intrinsic::amdgcn_buffer_atomic_umax:
-  case Intrinsic::amdgcn_buffer_atomic_and:
-  case Intrinsic::amdgcn_buffer_atomic_or:
-  case Intrinsic::amdgcn_buffer_atomic_xor:
-  case Intrinsic::amdgcn_buffer_atomic_cmpswap:
-  case Intrinsic::amdgcn_ps_live:
-  case Intrinsic::amdgcn_ds_swizzle:
-    return true;
-  default:
-    return false;
-  }
+  return lookupSourceOfDivergenceByIntr(IntrID);
 }
 } // namespace AMDGPU
 } // namespace llvm