1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -S -passes=indvars,loop-idiom < %s 3; PR14214 4target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" 5target triple = "x86_64-unknown-linux-gnu" 6 7define i32 @quote_arg() nounwind { 8entry: 9 br label %for.cond 10 11for.cond: ; preds = %for.inc, %entry 12 %backslashes.0 = phi i32 [ undef, %entry ], [ %backslashes.2, %for.inc ] 13 %p.0 = phi ptr [ undef, %entry ], [ %incdec.ptr3, %for.inc ] 14 %q.0 = phi ptr [ undef, %entry ], [ %q.2, %for.inc ] 15 %0 = load i8, ptr %p.0, align 1 16 switch i8 %0, label %while.cond.preheader [ 17 i8 0, label %for.cond4.preheader 18 i8 92, label %for.inc 19 ] 20 21while.cond.preheader: ; preds = %for.cond 22 %tobool210 = icmp eq i32 %backslashes.0, 0 23 br i1 %tobool210, label %for.inc.loopexit, label %while.body.lr.ph 24 25while.body.lr.ph: ; preds = %while.cond.preheader 26 %1 = add i32 %backslashes.0, -1 27 %2 = zext i32 %1 to i64 28 br label %while.body 29 30for.cond4.preheader: ; preds = %for.cond 31 %tobool57 = icmp eq i32 %backslashes.0, 0 32 br i1 %tobool57, label %for.end10, label %for.body6.lr.ph 33 34for.body6.lr.ph: ; preds = %for.cond4.preheader 35 br label %for.body6 36 37while.body: ; preds = %while.body.lr.ph, %while.body 38 %q.112 = phi ptr [ %q.0, %while.body.lr.ph ], [ %incdec.ptr, %while.body ] 39 %backslashes.111 = phi i32 [ %backslashes.0, %while.body.lr.ph ], [ %dec, %while.body ] 40 %incdec.ptr = getelementptr inbounds i8, ptr %q.112, i64 1 41 store i8 92, ptr %incdec.ptr, align 1 42 %dec = add nsw i32 %backslashes.111, -1 43 %tobool2 = icmp eq i32 %dec, 0 44 br i1 %tobool2, label %while.cond.for.inc.loopexit_crit_edge, label %while.body 45 46while.cond.for.inc.loopexit_crit_edge: ; preds = %while.body 47 %scevgep.sum = add i64 %2, 1 48 %scevgep13 = getelementptr i8, ptr %q.0, i64 %scevgep.sum 49 br label %for.inc.loopexit 50 51for.inc.loopexit: ; preds = %while.cond.for.inc.loopexit_crit_edge, %while.cond.preheader 52 %q.1.lcssa = phi ptr [ %scevgep13, %while.cond.for.inc.loopexit_crit_edge ], [ %q.0, %while.cond.preheader ] 53 br label %for.inc 54 55for.inc: ; preds = %for.inc.loopexit, %for.cond 56 %backslashes.2 = phi i32 [ %backslashes.0, %for.cond ], [ 0, %for.inc.loopexit ] 57 %q.2 = phi ptr [ %q.0, %for.cond ], [ %q.1.lcssa, %for.inc.loopexit ] 58 %incdec.ptr3 = getelementptr inbounds i8, ptr %p.0, i64 1 59 br label %for.cond 60 61for.body6: ; preds = %for.body6.lr.ph, %for.body6 62 %q.39 = phi ptr [ %q.0, %for.body6.lr.ph ], [ %incdec.ptr7, %for.body6 ] 63 %backslashes.38 = phi i32 [ %backslashes.0, %for.body6.lr.ph ], [ %dec9, %for.body6 ] 64 %incdec.ptr7 = getelementptr inbounds i8, ptr %q.39, i64 1 65 store i8 92, ptr %incdec.ptr7, align 1 66 %dec9 = add nsw i32 %backslashes.38, -1 67 %tobool5 = icmp eq i32 %dec9, 0 68 br i1 %tobool5, label %for.cond4.for.end10_crit_edge, label %for.body6 69 70for.cond4.for.end10_crit_edge: ; preds = %for.body6 71 br label %for.end10 72 73for.end10: ; preds = %for.cond4.for.end10_crit_edge, %for.cond4.preheader 74 ret i32 undef 75} 76