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.rint.f64.ll b/llvm/test/CodeGen/AMDGPU/llvm.rint.f64.ll
index c63fb17..30ce8ed 100644
--- a/llvm/test/CodeGen/AMDGPU/llvm.rint.f64.ll
+++ b/llvm/test/CodeGen/AMDGPU/llvm.rint.f64.ll
@@ -11,7 +11,7 @@
 ; SI: v_cndmask_b32
 ; SI: v_cndmask_b32
 ; SI: s_endpgm
-define void @rint_f64(double addrspace(1)* %out, double %in) {
+define amdgpu_kernel void @rint_f64(double addrspace(1)* %out, double %in) {
 entry:
   %0 = call double @llvm.rint.f64(double %in)
   store double %0, double addrspace(1)* %out
@@ -21,7 +21,7 @@
 ; FUNC-LABEL: {{^}}rint_v2f64:
 ; CI: v_rndne_f64_e32
 ; CI: v_rndne_f64_e32
-define void @rint_v2f64(<2 x double> addrspace(1)* %out, <2 x double> %in) {
+define amdgpu_kernel void @rint_v2f64(<2 x double> addrspace(1)* %out, <2 x double> %in) {
 entry:
   %0 = call <2 x double> @llvm.rint.v2f64(<2 x double> %in)
   store <2 x double> %0, <2 x double> addrspace(1)* %out
@@ -33,7 +33,7 @@
 ; CI: v_rndne_f64_e32
 ; CI: v_rndne_f64_e32
 ; CI: v_rndne_f64_e32
-define void @rint_v4f64(<4 x double> addrspace(1)* %out, <4 x double> %in) {
+define amdgpu_kernel void @rint_v4f64(<4 x double> addrspace(1)* %out, <4 x double> %in) {
 entry:
   %0 = call <4 x double> @llvm.rint.v4f64(<4 x double> %in)
   store <4 x double> %0, <4 x double> addrspace(1)* %out