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/llvm.r600.tex.ll b/llvm/test/CodeGen/AMDGPU/llvm.r600.tex.ll
index 409037f..9804491 100644
--- a/llvm/test/CodeGen/AMDGPU/llvm.r600.tex.ll
+++ b/llvm/test/CodeGen/AMDGPU/llvm.r600.tex.ll
@@ -17,7 +17,7 @@
 ;CHECK: TEX_SAMPLE T{{[0-9]+\.XYZW, T[0-9]+\.XYZW}} RID:0 SID:0 CT:NNNN
 ;CHECK: TEX_SAMPLE T{{[0-9]+\.XYZW, T[0-9]+\.XYZW}} RID:0 SID:0 CT:NNUN
 
-define void @test(<4 x float> addrspace(1)* %out, <4 x float> addrspace(1)* %in) {
+define amdgpu_kernel void @test(<4 x float> addrspace(1)* %out, <4 x float> addrspace(1)* %in) {
 bb:
   %addr = load <4 x float>, <4 x float> addrspace(1)* %in
   %tmp = shufflevector <4 x float> %addr, <4 x float> %addr, <4 x i32> <i32 0, i32 1, i32 2, i32 3>