Incorrect function return types for code compiled with clang (coremark)

[aaronsm]

Grab coremark from github.

Modify /path/to/coremark/linux64/core_portme.mak file as below：
-CC = gcc
+CC = clang

Compile for X86:
/path/to/coremark/make PORT_DIR=linux64

Use llvm-mctoll to translate coremark and compare the function return type.

For get_seed_args:
Function prototype of source code:
ee_s32 get_seed_args(int i, int argc, char *argv[])
Function prototype parsed:
declare dso_local void @get_seed_args(i32 %arg1, i32 %arg2, i64 %arg3)