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1; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s2;3; PR18396: Assertion: MO->isDead "Cannot fold physreg def".4; InlineSpiller::foldMemoryOperand needs to handle undef call operands.5 6target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"7 8@a = external global ptr, align 89@b = external global i32, align 410 11; Check that the call targets are folded, and we don't crash!12; CHECK-LABEL: foldCallOper:13; CHECK: callq *{{.*}}(%rbp)14; CHECK: callq *{{.*}}(%rbp)15define void @foldCallOper(ptr nocapture %p1) #0 {16entry:17 %0 = load ptr, ptr @a, align 818 br label %for.body.i19 20for.body.i: ; preds = %for.body.i, %entry21 %exitcond5.i = icmp eq i32 undef, undef22 br i1 %exitcond5.i, label %for.body3.lr.ph.i, label %for.body.i23 24for.body3.lr.ph.i: ; preds = %for.body.i25 %call.i = tail call i32 %p1(ptr undef, i32 0, ptr null)26 %tobool.i = icmp eq i32 %call.i, 027 br label %for.body3.i28 29for.body3.i: ; preds = %for.inc8.i, %for.body3.lr.ph.i30 %1 = phi ptr [ undef, %for.body3.lr.ph.i ], [ %.pre.i, %for.inc8.i ]31 %indvars.iv.i = phi i64 [ 1, %for.body3.lr.ph.i ], [ %phitmp.i, %for.inc8.i ]32 %call5.i = tail call i32 %p1(ptr %1, i32 0, ptr %0)33 br i1 %tobool.i, label %for.inc8.i, label %if.then.i34 35if.then.i: ; preds = %for.body3.i36 %2 = load i32, ptr %1, align 437 store i32 %2, ptr @b, align 438 br label %for.inc8.i39 40for.inc8.i: ; preds = %if.then.i, %for.body3.i41 %lftr.wideiv.i = trunc i64 %indvars.iv.i to i3242 %arrayidx4.phi.trans.insert.i = getelementptr inbounds [0 x ptr], ptr undef, i64 0, i64 %indvars.iv.i43 %.pre.i = load ptr, ptr %arrayidx4.phi.trans.insert.i, align 844 %phitmp.i = add i64 %indvars.iv.i, 145 br label %for.body3.i46}47 48attributes #0 = { noreturn uwtable "frame-pointer"="all" }49