|  | ; RUN: llc < %s -march=x86-64 | FileCheck %s | 
|  |  | 
|  | %"class.std::bitset" = type { [8 x i8] } | 
|  |  | 
|  | define zeroext i1 @_Z3fooPjmS_mRSt6bitsetILm32EE(i32* nocapture %a, i64 %asize, i32* nocapture %b, i64 %bsize, %"class.std::bitset"* %bits) nounwind readonly ssp noredzone { | 
|  | entry: | 
|  | %tmp.i.i.i.i = bitcast %"class.std::bitset"* %bits to i64* | 
|  | br label %for.cond | 
|  |  | 
|  | for.cond:                                         ; preds = %for.inc, %entry | 
|  | %0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ] | 
|  | %conv = zext i32 %0 to i64 | 
|  | %cmp = icmp eq i64 %conv, %bsize | 
|  | br i1 %cmp, label %return, label %for.body | 
|  |  | 
|  | for.body:                                         ; preds = %for.cond | 
|  | %arrayidx = getelementptr inbounds i32* %b, i64 %conv | 
|  | %tmp5 = load i32* %arrayidx, align 4 | 
|  | %conv6 = zext i32 %tmp5 to i64 | 
|  | %rem.i.i.i.i = and i64 %conv6, 63 | 
|  | %tmp3.i = load i64* %tmp.i.i.i.i, align 8 | 
|  | %shl.i.i = shl i64 1, %rem.i.i.i.i | 
|  | %and.i = and i64 %shl.i.i, %tmp3.i | 
|  | %cmp.i = icmp eq i64 %and.i, 0 | 
|  | br i1 %cmp.i, label %for.inc, label %return | 
|  |  | 
|  | for.inc:                                          ; preds = %for.body | 
|  | %inc = add i32 %0, 1 | 
|  | br label %for.cond | 
|  |  | 
|  | return:                                           ; preds = %for.body, %for.cond | 
|  | ; CHECK-NOT: and | 
|  | %retval.0 = phi i1 [ true, %for.body ], [ false, %for.cond ] | 
|  | ret i1 %retval.0 | 
|  | } | 
|  |  | 
|  | ; This test case caused an assertion failure; see PR9324. | 
|  | define void @func_37() noreturn nounwind ssp { | 
|  | entry: | 
|  | br i1 undef, label %lbl_919, label %entry.for.inc_crit_edge | 
|  |  | 
|  | entry.for.inc_crit_edge:                          ; preds = %entry | 
|  | br label %for.inc | 
|  |  | 
|  | lbl_919:                                          ; preds = %for.cond7.preheader, %entry | 
|  | br label %for.cond7.preheader | 
|  |  | 
|  | for.cond7.preheader:                              ; preds = %for.inc, %lbl_919 | 
|  | %storemerge.ph = phi i8 [ 0, %lbl_919 ], [ %add, %for.inc ] | 
|  | br i1 undef, label %for.inc, label %lbl_919 | 
|  |  | 
|  | for.inc:                                          ; preds = %for.cond7.preheader, %entry.for.inc_crit_edge | 
|  | %add = add i8 undef, 1 | 
|  | br label %for.cond7.preheader | 
|  | } |