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/mem-builtins.ll b/llvm/test/CodeGen/AMDGPU/mem-builtins.ll
index 9751267..1cbd0c3 100644
--- a/llvm/test/CodeGen/AMDGPU/mem-builtins.ll
+++ b/llvm/test/CodeGen/AMDGPU/mem-builtins.ll
@@ -9,7 +9,7 @@
 
 
 ; ERROR: error: <unknown>:0:0: in function test_memcmp void (i8 addrspace(1)*, i8 addrspace(1)*, i32*): unsupported call to function memcmp
-define void @test_memcmp(i8 addrspace(1)* %x, i8 addrspace(1)* %y, i32* nocapture %p) #0 {
+define amdgpu_kernel void @test_memcmp(i8 addrspace(1)* %x, i8 addrspace(1)* %y, i32* nocapture %p) #0 {
 entry:
   %cmp = tail call i32 @memcmp(i8 addrspace(1)* %x, i8 addrspace(1)* %y, i64 2)
   store volatile i32 %cmp, i32 addrspace(1)* undef
@@ -17,35 +17,35 @@
 }
 
 ; ERROR: error: <unknown>:0:0: in function test_memchr void (i8 addrspace(1)*, i32, i64): unsupported call to function memchr
-define void @test_memchr(i8 addrspace(1)* %src, i32 %char, i64 %len) #0 {
+define amdgpu_kernel void @test_memchr(i8 addrspace(1)* %src, i32 %char, i64 %len) #0 {
   %res = call i8 addrspace(1)* @memchr(i8 addrspace(1)* %src, i32 %char, i64 %len)
   store volatile i8 addrspace(1)* %res, i8 addrspace(1)* addrspace(1)* undef
   ret void
 }
 
 ; ERROR: error: <unknown>:0:0: in function test_strcpy void (i8*, i8*): unsupported call to function strcpy
-define void @test_strcpy(i8* %dst, i8* %src) #0 {
+define amdgpu_kernel void @test_strcpy(i8* %dst, i8* %src) #0 {
   %res = call i8* @strcpy(i8* %dst, i8* %src)
   store volatile i8* %res, i8* addrspace(1)* undef
   ret void
 }
 
 ; ERROR: error: <unknown>:0:0: in function test_strcmp void (i8*, i8*): unsupported call to function strcmp
-define void @test_strcmp(i8* %src0, i8* %src1) #0 {
+define amdgpu_kernel void @test_strcmp(i8* %src0, i8* %src1) #0 {
   %res = call i32 @strcmp(i8* %src0, i8* %src1)
   store volatile i32 %res, i32 addrspace(1)* undef
   ret void
 }
 
 ; ERROR: error: <unknown>:0:0: in function test_strlen void (i8*): unsupported call to function strlen
-define void @test_strlen(i8* %src) #0 {
+define amdgpu_kernel void @test_strlen(i8* %src) #0 {
   %res = call i32 @strlen(i8* %src)
   store volatile i32 %res, i32 addrspace(1)* undef
   ret void
 }
 
 ; ERROR: error: <unknown>:0:0: in function test_strnlen void (i8*, i32): unsupported call to function strnlen
-define void @test_strnlen(i8* %src, i32 %size) #0 {
+define amdgpu_kernel void @test_strnlen(i8* %src, i32 %size) #0 {
   %res = call i32 @strnlen(i8* %src, i32 %size)
   store volatile i32 %res, i32 addrspace(1)* undef
   ret void