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/kcache-fold.ll b/llvm/test/CodeGen/AMDGPU/kcache-fold.ll
index f9a0d0e..37dd977 100644
--- a/llvm/test/CodeGen/AMDGPU/kcache-fold.ll
+++ b/llvm/test/CodeGen/AMDGPU/kcache-fold.ll
@@ -2,7 +2,7 @@
 
 ; CHECK: {{^}}main1:
 ; CHECK: MOV * T{{[0-9]+\.[XYZW], KC0}}
-define void @main1() #0 {
+define amdgpu_kernel void @main1() #0 {
 main_body:
   %tmp = load <4 x float>, <4 x float> addrspace(8)* null
   %tmp7 = extractelement <4 x float> %tmp, i32 0
@@ -54,7 +54,7 @@
 
 ; CHECK: {{^}}main2:
 ; CHECK-NOT: MOV
-define void @main2() #0 {
+define amdgpu_kernel void @main2() #0 {
 main_body:
   %tmp = load <4 x float>, <4 x float> addrspace(8)* null
   %tmp7 = extractelement <4 x float> %tmp, i32 0