1 ; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s
3 ; PR18396: Assertion: MO->isDead "Cannot fold physreg def".
4 ; InlineSpiller::foldMemoryOperand needs to handle undef call operands.
6 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
8 @a = external global i32**, align 8
9 @b = external global i32, align 4
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 {
17 %0 = load i32**, i32*** @a, align 8
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
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
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
35 if.then.i: ; preds = %for.body3.i
36 %2 = load i32, i32* %1, align 4
37 store i32 %2, i32* @b, align 4
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
48 attributes #0 = { noreturn uwtable "no-frame-pointer-elim"="true" }