| ; RUN: opt < %s -newgvn | llvm-dis |
| ; PR4256 |
| target 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" |
| target triple = "i386-pc-linux-gnu" |
| %llvm.dbg.anchor.type = type { i32, i32 } |
| %struct.cset = type { i8*, i8, i8, i32, i8* } |
| %struct.lmat = type { %struct.re_guts*, i32, %llvm.dbg.anchor.type*, i8*, i8*, i8*, i8*, i8**, i32, i8*, i8*, i8*, i8*, i8* } |
| %struct.re_guts = type { i32*, %struct.cset*, i8*, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i8*, i8*, i32, i32, i32, i32, [1 x i8] } |
| |
| define i8* @lbackref(%struct.lmat* %m, i8* %start, i8* %stop, i32 %startst, i32 %stopst, i32 %lev, i32 %rec) nounwind { |
| entry: |
| br label %bb63 |
| |
| bb: ; preds = %bb63 |
| switch i32 0, label %bb62 [ |
| i32 268435456, label %bb2 |
| i32 805306368, label %bb9 |
| i32 -1610612736, label %bb51 |
| ] |
| |
| bb2: ; preds = %bb |
| br label %bb62 |
| |
| bb9: ; preds = %bb |
| %0 = load i8, i8* %sp.1, align 1 ; <i8> [#uses=0] |
| br label %bb62 |
| |
| bb51: ; preds = %bb |
| %1 = load i8, i8* %sp.1, align 1 ; <i8> [#uses=0] |
| ret i8* null |
| |
| bb62: ; preds = %bb9, %bb2, %bb |
| br label %bb63 |
| |
| bb63: ; preds = %bb84, %bb69, %bb62, %entry |
| %sp.1 = phi i8* [ null, %bb62 ], [ %sp.1.lcssa, %bb84 ], [ %start, %entry ], [ %sp.1.lcssa, %bb69 ] ; <i8*> [#uses=3] |
| br i1 false, label %bb, label %bb65 |
| |
| bb65: ; preds = %bb63 |
| %sp.1.lcssa = phi i8* [ %sp.1, %bb63 ] ; <i8*> [#uses=4] |
| br i1 false, label %bb66, label %bb69 |
| |
| bb66: ; preds = %bb65 |
| ret i8* null |
| |
| bb69: ; preds = %bb65 |
| switch i32 0, label %bb108.loopexit2.loopexit.loopexit [ |
| i32 1342177280, label %bb63 |
| i32 1476395008, label %bb84 |
| i32 1879048192, label %bb104 |
| i32 2013265920, label %bb93 |
| ] |
| |
| bb84: ; preds = %bb69 |
| %2 = tail call i8* @lbackref(%struct.lmat* %m, i8* %sp.1.lcssa, i8* %stop, i32 0, i32 %stopst, i32 0, i32 0) nounwind ; <i8*> [#uses=0] |
| br label %bb63 |
| |
| bb93: ; preds = %bb69 |
| ret i8* null |
| |
| bb104: ; preds = %bb69 |
| %sp.1.lcssa.lcssa33 = phi i8* [ %sp.1.lcssa, %bb69 ] ; <i8*> [#uses=0] |
| unreachable |
| |
| bb108.loopexit2.loopexit.loopexit: ; preds = %bb69 |
| ret i8* null |
| } |
