[NVPTX] noop when kernel pointers are already global

[oota-llvm.git] / test / CodeGen / NVPTX / nvvm-reflect.ll

diff --git a/test/CodeGen/NVPTX/nvvm-reflect.ll b/test/CodeGen/NVPTX/nvvm-reflect.ll
index 0d02194651e34d66d2ca19d63786b04fc16989d8..8c75dfc30a56f9d250d0bfb8009f093ab5ed64fc 100644 (file)
--- a/test/CodeGen/NVPTX/nvvm-reflect.ll
+++ b/test/CodeGen/NVPTX/nvvm-reflect.ll
@@ -1,7 +1,7 @@
 ; RUN: opt < %s -S -nvvm-reflect -nvvm-reflect-list USE_MUL=0 -O2 | FileCheck %s --check-prefix=USE_MUL_0
 ; RUN: opt < %s -S -nvvm-reflect -nvvm-reflect-list USE_MUL=1 -O2 | FileCheck %s --check-prefix=USE_MUL_1
 
-@str = private addrspace(4) unnamed_addr constant [8 x i8] c"USE_MUL\00"
+@str = private unnamed_addr addrspace(4) constant [8 x i8] c"USE_MUL\00"
 
 declare i32 @__nvvm_reflect(i8*)
 declare i8* @llvm.nvvm.ptr.constant.to.gen.p0i8.p4i8(i8 addrspace(4)*)
@@ -11,7 +11,7 @@ define float @foo(float %a, float %b) {
 ; USE_MUL_0-NOT: call i32 @__nvvm_reflect
 ; USE_MUL_1: define float @foo
 ; USE_MUL_1-NOT: call i32 @__nvvm_reflect
-  %ptr = tail call i8* @llvm.nvvm.ptr.constant.to.gen.p0i8.p4i8(i8 addrspace(4)* getelementptr inbounds ([8 x i8] addrspace(4)* @str, i32 0, i32 0))
+  %ptr = tail call i8* @llvm.nvvm.ptr.constant.to.gen.p0i8.p4i8(i8 addrspace(4)* getelementptr inbounds ([8 x i8], [8 x i8] addrspace(4)* @str, i32 0, i32 0))
   %reflect = tail call i32 @__nvvm_reflect(i8* %ptr)
   %cmp = icmp ugt i32 %reflect, 0
   br i1 %cmp, label %use_mul, label %use_add
@@ -32,3 +32,48 @@ exit:
   %ret = phi float [%ret1, %use_mul], [%ret2, %use_add]
   ret float %ret
 }
+
+declare i32 @llvm.nvvm.reflect.p0i8(i8*)
+
+; USE_MUL_0: define i32 @intrinsic
+; USE_MUL_1: define i32 @intrinsic
+define i32 @intrinsic() {
+; USE_MUL_0-NOT: call i32 @llvm.nvvm.reflect
+; USE_MUL_0: ret i32 0
+; USE_MUL_1-NOT: call i32 @llvm.nvvm.reflect
+; USE_MUL_1: ret i32 1
+  %ptr = tail call i8* @llvm.nvvm.ptr.constant.to.gen.p0i8.p4i8(i8 addrspace(4)* getelementptr inbounds ([8 x i8], [8 x i8] addrspace(4)* @str, i32 0, i32 0))
+  %reflect = tail call i32 @llvm.nvvm.reflect.p0i8(i8* %ptr)
+  ret i32 %reflect
+}
+
+; CUDA-7.0 passes __nvvm_reflect argument slightly differently.
+; Verify that it works, too
+
+@"$str" = private addrspace(1) constant [8 x i8] c"USE_MUL\00"
+
+define float @bar(float %a, float %b) {
+; USE_MUL_0: define float @bar
+; USE_MUL_0-NOT: call i32 @__nvvm_reflect
+; USE_MUL_1: define float @bar
+; USE_MUL_1-NOT: call i32 @__nvvm_reflect
+  %reflect = call i32 @__nvvm_reflect(i8* addrspacecast (i8 addrspace(1)* getelementptr inbounds ([8 x i8], [8 x i8] addrspace(1)* @"$str", i32 0, i32 0) to i8*))
+  %cmp = icmp ne i32 %reflect, 0
+  br i1 %cmp, label %use_mul, label %use_add
+
+use_mul:
+; USE_MUL_1: fmul float %a, %b
+; USE_MUL_0-NOT: fadd float %a, %b
+  %ret1 = fmul float %a, %b
+  br label %exit
+
+use_add:
+; USE_MUL_0: fadd float %a, %b
+; USE_MUL_1-NOT: fmul float %a, %b
+  %ret2 = fadd float %a, %b
+  br label %exit
+
+exit:
+  %ret = phi float [%ret1, %use_mul], [%ret2, %use_add]
+  ret float %ret
+}