1; RUN: opt < %s -basicaa -gvn -disable-output 2; PR1782 3 4target 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" 5target triple = "x86_64-unknown-linux-gnu" 6 %struct.device = type { [20 x i8] } 7 %struct.pci_device_id = type { i32, i32, i32, i32, i32, i32, i64 } 8 %struct.usb_bus = type { %struct.device* } 9 %struct.usb_hcd = type { %struct.usb_bus, [0 x i64] } 10@pci_ids = constant [1 x %struct.pci_device_id] zeroinitializer 11 12@__mod_pci_device_table = alias [1 x %struct.pci_device_id], [1 x %struct.pci_device_id]* @pci_ids ; <[1 x %struct.pci_device_id]*> [#uses=0] 13 14define i32 @ehci_pci_setup(%struct.usb_hcd* %hcd) { 15entry: 16 %tmp14 = getelementptr %struct.usb_hcd, %struct.usb_hcd* %hcd, i32 0, i32 0, i32 0 ; <%struct.device**> [#uses=1] 17 %tmp15 = load %struct.device*, %struct.device** %tmp14, align 8 ; <%struct.device*> [#uses=0] 18 br i1 false, label %bb25, label %return 19 20bb25: ; preds = %entry 21 br i1 false, label %cond_true, label %return 22 23cond_true: ; preds = %bb25 24 %tmp601 = getelementptr %struct.usb_hcd, %struct.usb_hcd* %hcd, i32 0, i32 1, i64 2305843009213693951 ; <i64*> [#uses=1] 25 %tmp67 = bitcast i64* %tmp601 to %struct.device** ; <%struct.device**> [#uses=1] 26 %tmp68 = load %struct.device*, %struct.device** %tmp67, align 8 ; <%struct.device*> [#uses=0] 27 ret i32 undef 28 29return: ; preds = %bb25, %entry 30 ret i32 undef 31} 32