PTX example

[Thomas Wuerthinger]

Vasanth,

I've committed and pushed the basic PTX example. After running "./mx.sh --vm server build" and "./mx.sh --vm server unittest BasicPTXTest" you should get the output I pasted in below. The "--vm server" flag means that you are using Graal in hosted mode running on top of HotSpot's server compiler. You can also start the unit test from within Eclipse after generating Eclipse project files with "./mx.sh ideinit".

Note that the example is still very basic and we'll need more restructuring of the compiler backend to nicely work with GPU architectures. But we have to start with *something* ;).

- thomas

running tests in com.oracle.graal.compiler.ptx.test
JUnit version 4.8
.0: int
.entry test1Snippet (	
	.param .u32 param0
) {	
	  .reg .pred %p;
	  .reg .u32 %r<16>;
L87:
	mov.s32 %r0, %r6;
	add.s32 %r0, %r0, 1;
	exit; 
}	

result=com.oracle.graal.api.code.CompilationResult at 665df3c6

Time: 0.03

OK (1 test)