1 ; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s 2 ; 3 ; PR18396: Assertion: MO->isDead "Cannot fold physreg def". 4 ; InlineSpiller::foldMemoryOperand needs to handle undef call operands. 5 6 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 7 8 @a = external global i32**, align 8 9 @b = external global i32, align 4 10 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) 15 define void @foldCallOper(i32 (i32*, i32, i32**)* nocapture %p1) #0 { 16 entry: 17 %0 = load i32**, i32*** @a, align 8 18 br label %for.body.i 19 20 for.body.i: ; preds = %for.body.i, %entry 21 %exitcond5.i = icmp eq i32 undef, undef 22 br i1 %exitcond5.i, label %for.body3.lr.ph.i, label %for.body.i 23 24 for.body3.lr.ph.i: ; preds = %for.body.i 25 %call.i = tail call i32 %p1(i32* undef, i32 0, i32** null) 26 %tobool.i = icmp eq i32 %call.i, 0 27 br label %for.body3.i 28 29 for.body3.i: ; preds = %for.inc8.i, %for.body3.lr.ph.i 30 %1 = phi i32* [ 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(i32* %1, i32 0, i32** %0) 33 br i1 %tobool.i, label %for.inc8.i, label %if.then.i 34 35 if.then.i: ; preds = %for.body3.i 36 %2 = load i32, i32* %1, align 4 37 store i32 %2, i32* @b, align 4 38 br label %for.inc8.i 39 40 for.inc8.i: ; preds = %if.then.i, %for.body3.i 41 %lftr.wideiv.i = trunc i64 %indvars.iv.i to i32 42 %arrayidx4.phi.trans.insert.i = getelementptr inbounds [0 x i32*], [0 x i32*]* undef, i64 0, i64 %indvars.iv.i 43 %.pre.i = load i32*, i32** %arrayidx4.phi.trans.insert.i, align 8 44 %phitmp.i = add i64 %indvars.iv.i, 1 45 br label %for.body3.i 46 } 47 48 attributes #0 = { noreturn uwtable "no-frame-pointer-elim"="true" } 49
