[PATCH] D52320: AMDGPU: add __builtin_amdgcn_update_dpp

[Yaxun Liu via Phabricator via cfe-commits]

yaxunl created this revision.
yaxunl added reviewers: kzhuravl, b-sumner, arsenm.
Herald added subscribers: t-tye, tpr, dstuttard, nhaehnle, wdng, jvesely.

https://reviews.llvm.org/D52320

Files:
  include/clang/Basic/BuiltinsAMDGPU.def
  lib/CodeGen/CGBuiltin.cpp
  test/CodeGenOpenCL/builtins-amdgcn-vi.cl
  test/SemaOpenCL/builtins-amdgcn-error.cl


Index: test/SemaOpenCL/builtins-amdgcn-error.cl
===================================================================
--- test/SemaOpenCL/builtins-amdgcn-error.cl
+++ test/SemaOpenCL/builtins-amdgcn-error.cl
@@ -102,6 +102,15 @@
   *out = __builtin_amdgcn_mov_dpp(a, 0, 0, 0, e); // expected-error {{argument to '__builtin_amdgcn_mov_dpp' must be a constant integer}}
 }
 
+void test_update_dpp2(global int* out, int a, int b, int c, int d, int e, bool f)
+{
+  *out = __builtin_amdgcn_update_dpp(a, b, 0, 0, 0, false);
+  *out = __builtin_amdgcn_update_dpp(a, 0, c, 0, 0, false); // expected-error {{argument to '__builtin_amdgcn_update_dpp' must be a constant integer}}
+  *out = __builtin_amdgcn_update_dpp(a, 0, 0, d, 0, false); // expected-error {{argument to '__builtin_amdgcn_update_dpp' must be a constant integer}}
+  *out = __builtin_amdgcn_update_dpp(a, 0, 0, 0, e, false); // expected-error {{argument to '__builtin_amdgcn_update_dpp' must be a constant integer}}
+  *out = __builtin_amdgcn_update_dpp(a, 0, 0, 0, 0, f); // expected-error {{argument to '__builtin_amdgcn_update_dpp' must be a constant integer}}
+}
+
 void test_ds_faddf(local float *out, float src, int a) {
   *out = __builtin_amdgcn_ds_faddf(out, src, a, 0, false); // expected-error {{argument to '__builtin_amdgcn_ds_faddf' must be a constant integer}}
   *out = __builtin_amdgcn_ds_faddf(out, src, 0, a, false); // expected-error {{argument to '__builtin_amdgcn_ds_faddf' must be a constant integer}}
Index: test/CodeGenOpenCL/builtins-amdgcn-vi.cl
===================================================================
--- test/CodeGenOpenCL/builtins-amdgcn-vi.cl
+++ test/CodeGenOpenCL/builtins-amdgcn-vi.cl
@@ -96,6 +96,13 @@
   *out = __builtin_amdgcn_mov_dpp(src, 0, 0, 0, false);
 }
 
+// CHECK-LABEL: @test_update_dpp
+// CHECK: call i32 @llvm.amdgcn.update.dpp.i32(i32 %arg1, i32 %arg2, i32 0, i32 0, i32 0, i1 false)
+void test_update_dpp(global int* out, int arg1, int arg2)
+{
+  *out = __builtin_amdgcn_update_dpp(arg1, arg2, 0, 0, 0, false);
+}
+
 // CHECK-LABEL: @test_ds_fadd
 // CHECK: call float @llvm.amdgcn.ds.fadd(float addrspace(3)* %out, float %src, i32 0, i32 0, i1 false)
 void test_ds_faddf(local float *out, float src) {
Index: lib/CodeGen/CGBuiltin.cpp
===================================================================
--- lib/CodeGen/CGBuiltin.cpp
+++ lib/CodeGen/CGBuiltin.cpp
@@ -11310,6 +11310,14 @@
                                     Args[0]->getType());
     return Builder.CreateCall(F, Args);
   }
+  case AMDGPU::BI__builtin_amdgcn_update_dpp: {
+    llvm::SmallVector<llvm::Value *, 6> Args;
+    for (unsigned I = 0; I != 6; ++I)
+      Args.push_back(EmitScalarExpr(E->getArg(I)));
+    Value *F =
+        CGM.getIntrinsic(Intrinsic::amdgcn_update_dpp, Args[0]->getType());
+    return Builder.CreateCall(F, Args);
+  }
   case AMDGPU::BI__builtin_amdgcn_div_fixup:
   case AMDGPU::BI__builtin_amdgcn_div_fixupf:
   case AMDGPU::BI__builtin_amdgcn_div_fixuph:
Index: include/clang/Basic/BuiltinsAMDGPU.def
===================================================================
--- include/clang/Basic/BuiltinsAMDGPU.def
+++ include/clang/Basic/BuiltinsAMDGPU.def
@@ -122,6 +122,7 @@
 TARGET_BUILTIN(__builtin_amdgcn_classh, "bhi", "nc", "16-bit-insts")
 TARGET_BUILTIN(__builtin_amdgcn_s_memrealtime, "LUi", "n", "s-memrealtime")
 TARGET_BUILTIN(__builtin_amdgcn_mov_dpp, "iiIiIiIiIb", "nc", "dpp")
+TARGET_BUILTIN(__builtin_amdgcn_update_dpp, "iiiIiIiIiIb", "nc", "dpp")
 TARGET_BUILTIN(__builtin_amdgcn_s_dcache_wb, "v", "n", "vi-insts")
 
 //===----------------------------------------------------------------------===//


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