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; RUN: llc < %s -march=bfin > %t
; The DAG combiner may sometimes create illegal i16 SETCC operations when run
; after LegalizeOps. Try to tease out all the optimizations in
; TargetLowering::SimplifySetCC.
@x = external global i16
@y = external global i16
declare i16 @llvm.ctlz.i16(i16)
; Case (srl (ctlz x), 5) == const
; Note: ctlz is promoted, so this test does not catch the DAG combiner
define i1 @srl_ctlz_const() {
%x = load i16* @x
%c = call i16 @llvm.ctlz.i16(i16 %x)
%s = lshr i16 %c, 4
%r = icmp eq i16 %s, 1
ret i1 %r
}
; Case (zext x) == const
define i1 @zext_const() {
%x = load i16* @x
%r = icmp ugt i16 %x, 1
ret i1 %r
}
; Case (sext x) == const
define i1 @sext_const() {
%x = load i16* @x
%y = add i16 %x, 1
%x2 = sext i16 %y to i32
%r = icmp ne i32 %x2, -1
ret i1 %r
}
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