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1; RUN: opt -passes='loop-mssa(loop-rotate),print<memoryssa>' -disable-output -verify-memoryssa %s 2>&1 | FileCheck %s2; REQUIRES: asserts3 4target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"5target triple = "x86_64-grtev4-linux-gnu"6 7declare double @sqrt(double)8 9; CHECK-LABEL: @f10define internal fastcc double @f(ptr %n_, ptr %dx) align 32 {11entry:12; CHECK: entry:13; CHECK: MemoryUse(liveOnEntry)14; CHECK-NOT: 7 = MemoryPhi15; CHECK-NOT: 6 = MemoryPhi16 %v0 = load i32, ptr %n_, align 417 br label %for.cond18 19for.cond: ; preds = %for.body, %entry20 %xmax.0 = phi double [ undef, %entry ], [ %xmax.1, %for.body ]21 %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]22 %cmp = icmp slt i32 %i.0, %v023 br i1 %cmp, label %for.body, label %for.end24 25for.body: ; preds = %for.cond26 %idxprom = zext i32 %i.0 to i6427 %arrayidx = getelementptr inbounds double, ptr %dx, i64 %idxprom28 %v1 = load double, ptr %arrayidx, align 829 %cmp1 = fcmp ueq double %v1, 0.000000e+0030 %xmax.1 = select i1 %cmp1, double %xmax.0, double %v131 %inc = add nuw nsw i32 %i.0, 132 br label %for.cond33 34for.end: ; preds = %for.cond35 %xmax.0.lcssa = phi double [ %xmax.0, %for.cond ]36 %cmp2 = fcmp oeq double %xmax.0.lcssa, 0.000000e+0037 br i1 %cmp2, label %cleanup, label %if.end438 39if.end4: ; preds = %for.end40 %div = fdiv double 1.000000e+00, %xmax.0.lcssa41 %cmp61 = icmp slt i32 0, %v042 br i1 %cmp61, label %for.body7.lr.ph, label %for.end1543 44for.body7.lr.ph: ; preds = %if.end445 br label %for.body746 47; CHECK: for.body7:48; CHECK: 3 = MemoryPhi({for.body7.lr.ph,liveOnEntry},{for.body7,1})49for.body7: ; preds = %for.body7.lr.ph, %for.body750 %i.13 = phi i32 [ 0, %for.body7.lr.ph ], [ %inc14, %for.body7 ]51 %sum.02 = phi x86_fp80 [ undef, %for.body7.lr.ph ], [ %add, %for.body7 ]52 %idxprom9 = zext i32 %i.13 to i6453 %arrayidx10 = getelementptr inbounds double, ptr %dx, i64 %idxprom954 %v3 = load double, ptr %arrayidx10, align 855 %mul11 = fmul double %div, %v356 %v2 = call double @sqrt(double %v3)57 %mul12 = fmul double %mul11, %v258 %conv = fpext double %mul12 to x86_fp8059 %add = fadd x86_fp80 %sum.02, %conv60 %inc14 = add nuw nsw i32 %i.13, 161 %cmp6 = icmp slt i32 %inc14, %v062 br i1 %cmp6, label %for.body7, label %for.cond5.for.end15_crit_edge63 64for.cond5.for.end15_crit_edge: ; preds = %for.body765 %split = phi x86_fp80 [ %add, %for.body7 ]66 br label %for.end1567 68for.end15: ; preds = %for.cond5.for.end15_crit_edge, %if.end469 %sum.0.lcssa = phi x86_fp80 [ %split, %for.cond5.for.end15_crit_edge ], [ undef, %if.end4 ]70 %conv16 = fptrunc x86_fp80 %sum.0.lcssa to double71 %call = call double @sqrt(double %conv16)72 %mul17 = fmul double %call, 0.000000e+0073 br label %cleanup74 75cleanup: ; preds = %for.end15, %for.end76 %retval.0 = phi double [ undef, %for.end ], [ %mul17, %for.end15 ]77 ret double %retval.078}79