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/rotl.ll b/llvm/test/CodeGen/AMDGPU/rotl.ll
index 7d2b553..c4bc8cd 100644
--- a/llvm/test/CodeGen/AMDGPU/rotl.ll
+++ b/llvm/test/CodeGen/AMDGPU/rotl.ll
@@ -10,7 +10,7 @@
 ; SI: s_sub_i32 [[SDST:s[0-9]+]], 32, {{[s][0-9]+}}
 ; SI: v_mov_b32_e32 [[VDST:v[0-9]+]], [[SDST]]
 ; SI: v_alignbit_b32 {{v[0-9]+, [s][0-9]+, s[0-9]+}}, [[VDST]]
-define void @rotl_i32(i32 addrspace(1)* %in, i32 %x, i32 %y) {
+define amdgpu_kernel void @rotl_i32(i32 addrspace(1)* %in, i32 %x, i32 %y) {
 entry:
   %0 = shl i32 %x, %y
   %1 = sub i32 32, %y
@@ -26,7 +26,7 @@
 ; SI-DAG: v_alignbit_b32
 ; SI-DAG: v_alignbit_b32
 ; SI: s_endpgm
-define void @rotl_v2i32(<2 x i32> addrspace(1)* %in, <2 x i32> %x, <2 x i32> %y) {
+define amdgpu_kernel void @rotl_v2i32(<2 x i32> addrspace(1)* %in, <2 x i32> %x, <2 x i32> %y) {
 entry:
   %0 = shl <2 x i32> %x, %y
   %1 = sub <2 x i32> <i32 32, i32 32>, %y
@@ -46,7 +46,7 @@
 ; SI-DAG: s_sub_i32
 ; SI-DAG: v_alignbit_b32
 ; SI: s_endpgm
-define void @rotl_v4i32(<4 x i32> addrspace(1)* %in, <4 x i32> %x, <4 x i32> %y) {
+define amdgpu_kernel void @rotl_v4i32(<4 x i32> addrspace(1)* %in, <4 x i32> %x, <4 x i32> %y) {
 entry:
   %0 = shl <4 x i32> %x, %y
   %1 = sub <4 x i32> <i32 32, i32 32, i32 32, i32 32>, %y