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; RUN: llc -O3 < %s | FileCheck %s
; RUN: llc -O3 -addr-sink-using-gep=1 < %s | FileCheck %s
; Test case for a DAG combiner bug where we combined an indexed load
; with an extension (sext, zext, or any) into a regular extended load,
; i.e., dropping the indexed value.
; <rdar://problem/16389332>
target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
target triple = "arm64-apple-ios"
%class.A = type { i64, i64 }
%class.C = type { i64 }
; CHECK-LABEL: XX:
; CHECK: ldr
define void @XX(%class.A* %K) {
entry:
br i1 undef, label %if.then, label %lor.rhs.i
lor.rhs.i: ; preds = %entry
%tmp = load i32* undef, align 4
%y.i.i.i = getelementptr inbounds %class.A* %K, i64 0, i32 1
%tmp1 = load i64* %y.i.i.i, align 8
%U.sroa.3.8.extract.trunc.i = trunc i64 %tmp1 to i32
%div11.i = sdiv i32 %U.sroa.3.8.extract.trunc.i, 17
%add12.i = add nsw i32 0, %div11.i
%U.sroa.3.12.extract.shift.i = lshr i64 %tmp1, 32
%U.sroa.3.12.extract.trunc.i = trunc i64 %U.sroa.3.12.extract.shift.i to i32
%div15.i = sdiv i32 %U.sroa.3.12.extract.trunc.i, 13
%add16.i = add nsw i32 %add12.i, %div15.i
%rem.i.i = srem i32 %add16.i, %tmp
%idxprom = sext i32 %rem.i.i to i64
%arrayidx = getelementptr inbounds %class.C** undef, i64 %idxprom
%tobool533 = icmp eq %class.C* undef, null
br i1 %tobool533, label %while.end, label %while.body
if.then: ; preds = %entry
unreachable
while.body: ; preds = %lor.rhs.i
unreachable
while.end: ; preds = %lor.rhs.i
%tmp3 = load %class.C** %arrayidx, align 8
unreachable
}
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