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/mad_int24.ll b/llvm/test/CodeGen/AMDGPU/mad_int24.ll
index f149ea0..af0159a 100644
--- a/llvm/test/CodeGen/AMDGPU/mad_int24.ll
+++ b/llvm/test/CodeGen/AMDGPU/mad_int24.ll
@@ -11,7 +11,7 @@
 ; CM: MULADD_INT24
 ; SI-NOT: and
 ; SI: v_mad_i32_i24
-define void @i32_mad24(i32 addrspace(1)* %out, i32 %a, i32 %b, i32 %c) {
+define amdgpu_kernel void @i32_mad24(i32 addrspace(1)* %out, i32 %a, i32 %b, i32 %c) {
 entry:
   %0 = shl i32 %a, 8
   %a_24 = ashr i32 %0, 8