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llvm-mirror/test/Regression/Transforms/ADCE/2002-05-23-ZeroArgPHITest.ll
Reid Spencer 43e145ce25 Promote GEP ubyte indices to uint. Backwards compatibility for 1.2 and
older features will be dropped soon and these test cases must not rely
on the upgrade capability.

llvm-svn: 31896
2006-11-23 15:14:52 +00:00

34 lines
1.2 KiB
LLVM

; This testcase contains a entire loop that should be removed. The only thing
; left is the store instruction in BB0. The problem this testcase was running
; into was that when the reg109 PHI was getting zero predecessors, it was
; removed even though there were uses still around. Now the uses are filled
; in with a dummy value before the PHI is deleted.
;
; RUN: llvm-as < %s | opt -adce
%node_t = type { double*, %node_t*, %node_t**, double**, double*, int, int }
implementation ; Functions:
void %localize_local(%node_t* %nodelist) {
bb0: ;[#uses=0]
%nodelist = alloca %node_t* ; <%node_t**> [#uses=2]
store %node_t* %nodelist, %node_t** %nodelist
br label %bb1
bb1: ;[#uses=2]
%reg107 = load %node_t** %nodelist ; <%node_t*> [#uses=2]
%cond211 = seteq %node_t* %reg107, null ; <bool> [#uses=1]
br bool %cond211, label %bb3, label %bb2
bb2: ;[#uses=3]
%reg109 = phi %node_t* [ %reg110, %bb2 ], [ %reg107, %bb1 ] ; <%node_t*> [#uses=1]
%reg212 = getelementptr %node_t* %reg109, long 0, uint 1 ; <%node_t**> [#uses=1]
%reg110 = load %node_t** %reg212 ; <%node_t*> [#uses=2]
%cond213 = setne %node_t* %reg110, null ; <bool> [#uses=1]
br bool %cond213, label %bb2, label %bb3
bb3: ;[#uses=2]
ret void
}