llvm-6502/test/Transforms/GlobalOpt/storepointer-compare.llx
2008-03-01 09:15:35 +00:00

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; RUN: llvm-as < %s | opt -globalopt | llvm-dis | \
; RUN: grep {call void @Actual}
; Check that a comparison does not prevent an indirect call from being made
; direct. The global will still remain, but indirect call elim is still good.
@G = internal global void ()* null ; <void ()**> [#uses=2]
define internal void @Actual() {
ret void
}
define void @init() {
store void ()* @Actual, void ()** @G
ret void
}
define void @doit() {
%FP = load void ()** @G ; <void ()*> [#uses=2]
%CC = icmp eq void ()* %FP, null ; <i1> [#uses=1]
br i1 %CC, label %isNull, label %DoCall
DoCall: ; preds = %0
call void %FP( )
ret void
isNull: ; preds = %0
ret void
}