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| ; RUN: opt < %s -loop-reduce -disable-output
; LSR should not crash on this.
define fastcc void @loadloop() {
entry:
switch i8 0, label %shortcirc_next [
i8 32, label %loopexit.2
i8 59, label %loopexit.2
]
shortcirc_next: ; preds = %no_exit.2, %entry
%indvar37 = phi i32 [ 0, %entry ], [ %indvar.next38, %no_exit.2 ] ; <i32> [#uses=3]
%gep.upgrd.1 = zext i32 %indvar37 to i64 ; <i64> [#uses=1]
%wp.2.4 = getelementptr i8, i8* null, i64 %gep.upgrd.1 ; <i8*> [#uses=1]
br i1 false, label %loopexit.2, label %no_exit.2
no_exit.2: ; preds = %shortcirc_next
%wp.2.4.rec = bitcast i32 %indvar37 to i32 ; <i32> [#uses=1]
%inc.1.rec = add i32 %wp.2.4.rec, 1 ; <i32> [#uses=1]
%inc.1 = getelementptr i8, i8* null, i32 %inc.1.rec ; <i8*> [#uses=2]
%indvar.next38 = add i32 %indvar37, 1 ; <i32> [#uses=1]
switch i8 0, label %shortcirc_next [
i8 32, label %loopexit.2
i8 59, label %loopexit.2
]
loopexit.2: ; preds = %no_exit.2, %no_exit.2, %shortcirc_next, %entry, %entry
%wp.2.7 = phi i8* [ null, %entry ], [ null, %entry ], [ %wp.2.4, %shortcirc_next ], [ %inc.1, %no_exit.2 ], [ %inc.1, %no_exit.2 ] ; <i8*> [#uses=0]
ret void
}
|