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/dagcombiner-bug-illegal-vec4-int-to-fp.ll b/llvm/test/CodeGen/AMDGPU/dagcombiner-bug-illegal-vec4-int-to-fp.ll
index fb43ff4..ceff889 100644
--- a/llvm/test/CodeGen/AMDGPU/dagcombiner-bug-illegal-vec4-int-to-fp.ll
+++ b/llvm/test/CodeGen/AMDGPU/dagcombiner-bug-illegal-vec4-int-to-fp.ll
@@ -10,7 +10,7 @@
 ; CHECK: {{^}}sint:
 ; CHECK: INT_TO_FLT * T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
 
-define void @sint(<4 x float> addrspace(1)* %out, i32 addrspace(1)* %in) {
+define amdgpu_kernel void @sint(<4 x float> addrspace(1)* %out, i32 addrspace(1)* %in) {
 entry:
   %ptr = getelementptr i32, i32 addrspace(1)* %in, i32 1
   %sint = load i32, i32 addrspace(1) * %in
@@ -24,7 +24,7 @@
 ;CHECK: {{^}}uint:
 ;CHECK: UINT_TO_FLT * T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
 
-define void @uint(<4 x float> addrspace(1)* %out, i32 addrspace(1)* %in) {
+define amdgpu_kernel void @uint(<4 x float> addrspace(1)* %out, i32 addrspace(1)* %in) {
 entry:
   %ptr = getelementptr i32, i32 addrspace(1)* %in, i32 1
   %uint = load i32, i32 addrspace(1) * %in