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/schedule-global-loads.ll b/llvm/test/CodeGen/AMDGPU/schedule-global-loads.ll
index 32c456b..44d4608 100644
--- a/llvm/test/CodeGen/AMDGPU/schedule-global-loads.ll
+++ b/llvm/test/CodeGen/AMDGPU/schedule-global-loads.ll
@@ -10,7 +10,7 @@
 ; SI-DAG: buffer_load_dword [[REG1:v[0-9]+]], off, s{{\[[0-9]+:[0-9]+\]}}, 0 offset:8
 ; SI: buffer_store_dword [[REG0]]
 ; SI: buffer_store_dword [[REG1]]
-define void @cluster_global_arg_loads(i32 addrspace(1)* %out0, i32 addrspace(1)* %out1, i32 addrspace(1)* %ptr) #0 {
+define amdgpu_kernel void @cluster_global_arg_loads(i32 addrspace(1)* %out0, i32 addrspace(1)* %out1, i32 addrspace(1)* %ptr) #0 {
   %load0 = load i32, i32 addrspace(1)* %ptr, align 4
   %gep = getelementptr i32, i32 addrspace(1)* %ptr, i32 2
   %load1 = load i32, i32 addrspace(1)* %gep, align 4
@@ -24,7 +24,7 @@
 ; FUNC-LABEL: {{^}}same_base_ptr_crash:
 ; SI: buffer_load_dword
 ; SI: buffer_load_dword
-define void @same_base_ptr_crash(i32 addrspace(1)* %out, i32 addrspace(1)* %in, i32 %offset) {
+define amdgpu_kernel void @same_base_ptr_crash(i32 addrspace(1)* %out, i32 addrspace(1)* %in, i32 %offset) {
 entry:
   %out1 = getelementptr i32, i32 addrspace(1)* %out, i32 %offset
   %tmp0 = load i32, i32 addrspace(1)* %out