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1; RUN: llc < %s -mtriple="arm-apple-ios3.0.0" | FileCheck %s2 3target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32-S32"4 5%struct.eggs = type { %struct.spam, i16 }6%struct.spam = type { [3 x i32] }7%struct.barney = type { [2 x i32], [2 x i32] }8 9; Make sure that the sext op does not get lost due to computeKnownBits.10; CHECK: quux11; CHECK: lsl12; CHECK: asr13; CHECK: b14define void @quux(ptr %arg) {15bb:16 %tmp1 = getelementptr inbounds %struct.eggs, ptr %arg, i32 0, i32 117 %0 = load i16, ptr %tmp1, align 218 %tobool = icmp eq i16 %0, 019 br i1 %tobool, label %bb16, label %bb320 21bb3: ; preds = %bb22 %tmp5 = ptrtoint ptr %tmp1 to i3223 %tmp6 = shl i32 %tmp5, 2024 %tmp7 = ashr exact i32 %tmp6, 2025 %tmp14 = getelementptr inbounds %struct.barney, ptr undef, i32 %tmp726 %tmp15 = tail call i32 @widget(ptr %tmp14, ptr %tmp1, i32 %tmp7)27 br label %bb1628 29bb16: ; preds = %bb3, %bb30 ret void31}32 33declare i32 @widget(ptr, ptr, i32)34