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-kernel-arg-loads.ll b/llvm/test/CodeGen/AMDGPU/schedule-kernel-arg-loads.ll
index ccfde7b..5c47c16 100644
--- a/llvm/test/CodeGen/AMDGPU/schedule-kernel-arg-loads.ll
+++ b/llvm/test/CodeGen/AMDGPU/schedule-kernel-arg-loads.ll
@@ -12,7 +12,7 @@
 ; VI: s_load_dwordx2 s{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0x24
 ; VI: s_load_dwordx2 s{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0x2c
 ; VI: s_load_dword s{{[0-9]+}}, s{{\[[0-9]+:[0-9]+\]}}, 0x38
-define void @cluster_arg_loads(i32 addrspace(1)* %out0, i32 addrspace(1)* %out1, i32 %x, i32 %y) nounwind {
+define amdgpu_kernel void @cluster_arg_loads(i32 addrspace(1)* %out0, i32 addrspace(1)* %out1, i32 %x, i32 %y) nounwind {
   store i32 %x, i32 addrspace(1)* %out0, align 4
   store i32 %y, i32 addrspace(1)* %out1, align 4
   ret void
@@ -26,7 +26,7 @@
 ; GCN: s_load_dwordx2
 ; GCN: s_load_dwordx2
 ; GCN: s_endpgm
-define void @same_base_ptr_crash(i64 addrspace(1)* %out,
+define amdgpu_kernel void @same_base_ptr_crash(i64 addrspace(1)* %out,
     i64 %arg0, i64 %arg1, i64 %arg2, i64 %arg3, i64 %arg4, i64 %arg5, i64 %arg6, i64 %arg7,
     i64 %arg8, i64 %arg9, i64 %arg10, i64 %arg11, i64 %arg12, i64 %arg13, i64 %arg14, i64 %arg15,
     i64 %arg16, i64 %arg17, i64 %arg18, i64 %arg19, i64 %arg20, i64 %arg21, i64 %arg22, i64 %arg23,