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| ; RUN: llc -verify-machineinstrs < %s
;
; The lowering of a switch combined with constand folding would leave spurious extra arguments on a PHI instruction.
;
target triple = "x86_64-apple-darwin10"
define void @foo() {
br label %cond_true813.i
cond_true813.i: ; preds = %0
br i1 false, label %cond_true818.i, label %cond_next1146.i
cond_true818.i: ; preds = %cond_true813.i
br i1 false, label %recog_memoized.exit52, label %cond_next1146.i
recog_memoized.exit52: ; preds = %cond_true818.i
switch i32 0, label %bb886.i.preheader [
i32 0, label %bb907.i
i32 44, label %bb866.i
i32 103, label %bb874.i
i32 114, label %bb874.i
]
bb857.i: ; preds = %bb886.i, %bb866.i
%tmp862.i494.24 = phi i8* [ null, %bb866.i ], [ %tmp862.i494.26, %bb886.i ] ; <i8*> [#uses=1]
switch i32 0, label %bb886.i.preheader [
i32 0, label %bb907.i
i32 44, label %bb866.i
i32 103, label %bb874.i
i32 114, label %bb874.i
]
bb866.i.loopexit: ; preds = %bb874.i
br label %bb866.i
bb866.i.loopexit31: ; preds = %cond_true903.i
br label %bb866.i
bb866.i: ; preds = %bb866.i.loopexit31, %bb866.i.loopexit, %bb857.i, %recog_memoized.exit52
br i1 false, label %bb907.i, label %bb857.i
bb874.i.preheader.loopexit: ; preds = %cond_true903.i, %cond_true903.i
ret void
bb874.i: ; preds = %bb857.i, %bb857.i, %recog_memoized.exit52, %recog_memoized.exit52
switch i32 0, label %bb886.i.preheader.loopexit [
i32 0, label %bb907.i
i32 44, label %bb866.i.loopexit
i32 103, label %bb874.i.backedge
i32 114, label %bb874.i.backedge
]
bb874.i.backedge: ; preds = %bb874.i, %bb874.i
ret void
bb886.i.preheader.loopexit: ; preds = %bb874.i
ret void
bb886.i.preheader: ; preds = %bb857.i, %recog_memoized.exit52
%tmp862.i494.26 = phi i8* [ undef, %recog_memoized.exit52 ], [ %tmp862.i494.24, %bb857.i ] ; <i8*> [#uses=1]
br label %bb886.i
bb886.i: ; preds = %cond_true903.i, %bb886.i.preheader
br i1 false, label %bb857.i, label %cond_true903.i
cond_true903.i: ; preds = %bb886.i
switch i32 0, label %bb886.i [
i32 0, label %bb907.i
i32 44, label %bb866.i.loopexit31
i32 103, label %bb874.i.preheader.loopexit
i32 114, label %bb874.i.preheader.loopexit
]
bb907.i: ; preds = %cond_true903.i, %bb874.i, %bb866.i, %bb857.i, %recog_memoized.exit52
br i1 false, label %cond_next1146.i, label %cond_true910.i
cond_true910.i: ; preds = %bb907.i
ret void
cond_next1146.i: ; preds = %bb907.i, %cond_true818.i, %cond_true813.i
ret void
bb2060.i: ; No predecessors!
br i1 false, label %cond_true2064.i, label %bb2067.i
cond_true2064.i: ; preds = %bb2060.i
unreachable
bb2067.i: ; preds = %bb2060.i
ret void
cond_next3473: ; No predecessors!
ret void
cond_next3521: ; No predecessors!
ret void
}
|