[llvm-commits] CVS: llvm/test/Regression/CodeGen/Generic/GC/alloc_loop.ll

[Chris Lattner]

Changes in directory llvm/test/Regression/CodeGen/Generic/GC:

alloc_loop.ll added (r1.1)

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Log message:

Add a simple testcase for garbage collection support


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Diffs of the changes:  (+52 -0)

Index: llvm/test/Regression/CodeGen/Generic/GC/alloc_loop.ll
diff -c /dev/null llvm/test/Regression/CodeGen/Generic/GC/alloc_loop.ll:1.1
*** /dev/null	Sun May 23 16:25:00 2004
--- llvm/test/Regression/CodeGen/Generic/GC/alloc_loop.ll	Sun May 23 16:24:50 2004
***************
*** 0 ****
--- 1,52 ----
+ implementation
+ 
+ declare sbyte* %llvm_gc_allocate(uint)
+ declare void %llvm_gc_initialize()
+ 
+ declare void %llvm.gcroot(sbyte**, sbyte*)
+ declare void %llvm.gcwrite(sbyte*, sbyte**)
+ 
+ int %main() {
+ entry:
+ 	%A = alloca sbyte*
+ 	%B = alloca sbyte**
+ 
+ 	call void %llvm_gc_initialize()
+ 
+         ;; void *A;
+ 	call void %llvm.gcroot(sbyte** %A, sbyte* null)
+ 
+         ;; A = gcalloc(10);
+ 	%Aptr = call sbyte* %llvm_gc_allocate(uint 10)
+ 	store sbyte* %Aptr, sbyte** %A
+ 
+         ;; void **B;
+ 	%tmp.1 = cast sbyte*** %B to sbyte **
+ 	call void %llvm.gcroot(sbyte** %tmp.1, sbyte* null)
+ 
+ 	;; B = gcalloc(4);
+ 	%B = call sbyte* %llvm_gc_allocate(uint 8)
+ 	%tmp.2 = cast sbyte* %B to sbyte**
+ 	store sbyte** %tmp.2, sbyte*** %B
+ 
+ 	;; *B = A;
+ 	%B.1 = load sbyte*** %B
+ 	%A.1 = load sbyte** %A
+ 	call void %llvm.gcwrite(sbyte* %A.1, sbyte** %B.1)
+ 	
+ 	br label %AllocLoop
+ 
+ AllocLoop:
+ 	%i = phi uint [ 0, %entry ], [ %indvar.next, %AllocLoop ]
+         ;; Allocated mem: allocated memory is immediately dead.
+ 	call sbyte* %llvm_gc_allocate(uint 100)
+ 	
+ 	%indvar.next = add uint %i, 1
+ 	%exitcond = seteq uint %indvar.next, 10000000
+ 	br bool %exitcond, label %Exit, label %AllocLoop
+ 
+ Exit:
+ 	ret int 0
+ }
+ 
+ declare void %__main()