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1; RUN: opt -S -aa-pipeline=objc-arc-aa,basic-aa -passes=gvn < %s | FileCheck %s2; rdar://100505793 4; objc_retainBlock stores into %repeater so the load from after the5; call isn't forwardable from the store before the call.6 7; CHECK: %tmp16 = call ptr @llvm.objc.retainBlock(ptr %block) [[NUW:#[0-9]+]]8; CHECK: %tmp18 = load ptr, ptr %byref.forwarding, align 89; CHECK: %repeater12 = getelementptr inbounds %struct.__block_byref_repeater, ptr %tmp18, i64 0, i32 610; CHECK: store ptr %tmp16, ptr %repeater12, align 811 12target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"13 14%0 = type opaque15%struct.__block_byref_repeater = type { ptr, ptr, i32, i32, ptr, ptr, ptr }16%struct.__block_descriptor = type { i64, i64 }17 18define void @foo() noreturn {19entry:20 %repeater = alloca %struct.__block_byref_repeater, align 821 %block = alloca <{ ptr, i32, i32, ptr, ptr, ptr, ptr }>, align 822 %byref.forwarding = getelementptr inbounds %struct.__block_byref_repeater, ptr %repeater, i64 0, i32 123 %tmp10 = getelementptr inbounds %struct.__block_byref_repeater, ptr %repeater, i64 0, i32 624 store ptr null, ptr %tmp10, align 825 %block.captured11 = getelementptr inbounds <{ ptr, i32, i32, ptr, ptr, ptr, ptr }>, ptr %block, i64 0, i32 626 store ptr %repeater, ptr %block.captured11, align 827 %tmp16 = call ptr @llvm.objc.retainBlock(ptr %block) nounwind28 %tmp18 = load ptr, ptr %byref.forwarding, align 829 %repeater12 = getelementptr inbounds %struct.__block_byref_repeater, ptr %tmp18, i64 0, i32 630 %tmp13 = load ptr, ptr %repeater12, align 831 store ptr %tmp16, ptr %repeater12, align 832 ret void33}34 35declare ptr @llvm.objc.retainBlock(ptr)36 37; CHECK: attributes #0 = { noreturn }38; CHECK: attributes [[NUW]] = { nounwind }39