1 ; RUN: opt -S -objc-arc-aa -basicaa -gvn < %s | FileCheck %s 2 ; rdar://10050579 3 4 ; objc_retainBlock stores into %repeater so the load from after the 5 ; call isn't forwardable from the store before the call. 6 7 ; CHECK: %tmp16 = call i8* @objc_retainBlock(i8* %tmp15) nounwind 8 ; CHECK: %tmp17 = bitcast i8* %tmp16 to void ()* 9 ; CHECK: %tmp18 = load %struct.__block_byref_repeater** %byref.forwarding, align 8 10 ; CHECK: %repeater12 = getelementptr inbounds %struct.__block_byref_repeater* %tmp18, i64 0, i32 6 11 ; CHECK: store void ()* %tmp17, void ()** %repeater12, align 8 12 13 target 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" 14 15 %0 = type opaque 16 %struct.__block_byref_repeater = type { i8*, %struct.__block_byref_repeater*, i32, i32, i8*, i8*, void ()* } 17 %struct.__block_descriptor = type { i64, i64 } 18 19 define void @foo() noreturn { 20 entry: 21 %repeater = alloca %struct.__block_byref_repeater, align 8 22 %block = alloca <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0*, i8* }>, align 8 23 %byref.forwarding = getelementptr inbounds %struct.__block_byref_repeater* %repeater, i64 0, i32 1 24 %tmp10 = getelementptr inbounds %struct.__block_byref_repeater* %repeater, i64 0, i32 6 25 store void ()* null, void ()** %tmp10, align 8 26 %block.captured11 = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0*, i8* }>* %block, i64 0, i32 6 27 %tmp14 = bitcast %struct.__block_byref_repeater* %repeater to i8* 28 store i8* %tmp14, i8** %block.captured11, align 8 29 %tmp15 = bitcast <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0*, i8* }>* %block to i8* 30 %tmp16 = call i8* @objc_retainBlock(i8* %tmp15) nounwind 31 %tmp17 = bitcast i8* %tmp16 to void ()* 32 %tmp18 = load %struct.__block_byref_repeater** %byref.forwarding, align 8 33 %repeater12 = getelementptr inbounds %struct.__block_byref_repeater* %tmp18, i64 0, i32 6 34 %tmp13 = load void ()** %repeater12, align 8 35 store void ()* %tmp17, void ()** %repeater12, align 8 36 ret void 37 } 38 39 declare i8* @objc_retainBlock(i8*) 40
