1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4 2; RUN: opt < %s -passes=newgvn | llvm-dis 3; PR4256 4target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32" 5target triple = "i386-pc-linux-gnu" 6 %llvm.dbg.anchor.type = type { i32, i32 } 7 %struct.cset = type { ptr, i8, i8, i32, ptr } 8 %struct.lmat = type { ptr, i32, ptr, ptr, ptr, ptr, ptr, ptr, i32, ptr, ptr, ptr, ptr, ptr } 9 %struct.re_guts = type { ptr, ptr, ptr, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, ptr, ptr, i32, i32, i32, i32, [1 x i8] } 10 11define ptr @lbackref(ptr %m, ptr %start, ptr %stop, i32 %startst, i32 %stopst, i32 %lev, i32 %rec) nounwind { 12entry: 13 br label %bb63 14 15bb: ; preds = %bb63 16 switch i32 0, label %bb62 [ 17 i32 268435456, label %bb2 18 i32 805306368, label %bb9 19 i32 -1610612736, label %bb51 20 ] 21 22bb2: ; preds = %bb 23 br label %bb62 24 25bb9: ; preds = %bb 26 %0 = load i8, ptr %sp.1, align 1 ; <i8> [#uses=0] 27 br label %bb62 28 29bb51: ; preds = %bb 30 %1 = load i8, ptr %sp.1, align 1 ; <i8> [#uses=0] 31 ret ptr null 32 33bb62: ; preds = %bb9, %bb2, %bb 34 br label %bb63 35 36bb63: ; preds = %bb84, %bb69, %bb62, %entry 37 %sp.1 = phi ptr [ null, %bb62 ], [ %sp.1.lcssa, %bb84 ], [ %start, %entry ], [ %sp.1.lcssa, %bb69 ] ; <ptr> [#uses=3] 38 br i1 false, label %bb, label %bb65 39 40bb65: ; preds = %bb63 41 %sp.1.lcssa = phi ptr [ %sp.1, %bb63 ] ; <ptr> [#uses=4] 42 br i1 false, label %bb66, label %bb69 43 44bb66: ; preds = %bb65 45 ret ptr null 46 47bb69: ; preds = %bb65 48 switch i32 0, label %bb108.loopexit2.loopexit.loopexit [ 49 i32 1342177280, label %bb63 50 i32 1476395008, label %bb84 51 i32 1879048192, label %bb104 52 i32 2013265920, label %bb93 53 ] 54 55bb84: ; preds = %bb69 56 %2 = tail call ptr @lbackref(ptr %m, ptr %sp.1.lcssa, ptr %stop, i32 0, i32 %stopst, i32 0, i32 0) nounwind ; <ptr> [#uses=0] 57 br label %bb63 58 59bb93: ; preds = %bb69 60 ret ptr null 61 62bb104: ; preds = %bb69 63 %sp.1.lcssa.lcssa33 = phi ptr [ %sp.1.lcssa, %bb69 ] ; <ptr> [#uses=0] 64 unreachable 65 66bb108.loopexit2.loopexit.loopexit: ; preds = %bb69 67 ret ptr null 68} 69