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/lds-initializer.ll b/llvm/test/CodeGen/AMDGPU/lds-initializer.ll
index 9875814..254673d 100644
--- a/llvm/test/CodeGen/AMDGPU/lds-initializer.ll
+++ b/llvm/test/CodeGen/AMDGPU/lds-initializer.ll
@@ -5,7 +5,7 @@
 
 @lds = addrspace(3) global [8 x i32] [i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8]
 
-define void @load_init_lds_global(i32 addrspace(1)* %out, i1 %p) {
+define amdgpu_kernel void @load_init_lds_global(i32 addrspace(1)* %out, i1 %p) {
  %gep = getelementptr [8 x i32], [8 x i32] addrspace(3)* @lds, i32 0, i32 10
   %ld = load i32, i32 addrspace(3)* %gep
   store i32 %ld, i32 addrspace(1)* %out