AMDGPU: Mark all unspecified CC functions in tests as amdgpu_kernel

Currently the default C calling convention functions are treated
the same as compute kernels. Make this explicit so the default
calling convention can be changed to a non-kernel.

Converted with perl -pi -e 's/define void/define amdgpu_kernel void/'
on the relevant test directories (and undoing in one place that actually
wanted a non-kernel).

llvm-svn: 298444
diff --git a/llvm/test/CodeGen/AMDGPU/no-initializer-constant-addrspace.ll b/llvm/test/CodeGen/AMDGPU/no-initializer-constant-addrspace.ll
index 9dd99ef..97dc67f 100644
--- a/llvm/test/CodeGen/AMDGPU/no-initializer-constant-addrspace.ll
+++ b/llvm/test/CodeGen/AMDGPU/no-initializer-constant-addrspace.ll
@@ -9,7 +9,7 @@
 @extern_const_addrspace = external unnamed_addr addrspace(2) constant [5 x i32], align 4
 
 ; CHECK-DAG: Name: load_extern_const_init
-define void @load_extern_const_init(i32 addrspace(1)* %out) nounwind {
+define amdgpu_kernel void @load_extern_const_init(i32 addrspace(1)* %out) nounwind {
   %val = load i32, i32 addrspace(2)* getelementptr ([5 x i32], [5 x i32] addrspace(2)* @extern_const_addrspace, i64 0, i64 3), align 4
   store i32 %val, i32 addrspace(1)* %out, align 4
   ret void
@@ -19,7 +19,7 @@
 @undef_const_addrspace = unnamed_addr addrspace(2) constant [5 x i32] undef, align 4
 
 ; CHECK-DAG: Name: undef_const_addrspace
-define void @load_undef_const_init(i32 addrspace(1)* %out) nounwind {
+define amdgpu_kernel void @load_undef_const_init(i32 addrspace(1)* %out) nounwind {
   %val = load i32, i32 addrspace(2)* getelementptr ([5 x i32], [5 x i32] addrspace(2)* @undef_const_addrspace, i64 0, i64 3), align 4
   store i32 %val, i32 addrspace(1)* %out, align 4
   ret void