| ; RUN: llc -march=x86-64 -mcpu=corei7 -disable-cgp-select2branch < %s |
| |
| ; We should not crash on this test. |
| |
| 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-f80:128:128-n8:16:32" |
| target triple = "i386-apple-darwin9.0.0" |
| |
| @global = external constant [411 x i8], align 1 |
| |
| define void @snork() nounwind { |
| bb: |
| br i1 undef, label %bb26, label %bb27 |
| |
| bb26: ; preds = %bb48, %bb26, %bb |
| switch i32 undef, label %bb26 [ |
| i32 142771596, label %bb28 |
| ] |
| |
| bb27: ; preds = %bb48, %bb |
| switch i32 undef, label %bb49 [ |
| i32 142771596, label %bb28 |
| ] |
| |
| bb28: ; preds = %bb27, %bb26 |
| %tmp = load i32* null |
| %tmp29 = trunc i32 %tmp to i8 |
| store i8* undef, i8** undef |
| %tmp30 = load i32* null |
| %tmp31 = icmp eq i32 %tmp30, 0 |
| %tmp32 = getelementptr inbounds [411 x i8]* @global, i32 0, i32 undef |
| %tmp33 = load i8* %tmp32, align 1 |
| %tmp34 = getelementptr inbounds [411 x i8]* @global, i32 0, i32 0 |
| %tmp35 = load i8* %tmp34, align 1 |
| %tmp36 = select i1 %tmp31, i8 %tmp35, i8 %tmp33 |
| %tmp37 = select i1 undef, i8 %tmp29, i8 %tmp36 |
| %tmp38 = zext i8 %tmp37 to i32 |
| %tmp39 = select i1 undef, i32 0, i32 %tmp38 |
| %tmp40 = getelementptr inbounds i32* null, i32 %tmp39 |
| %tmp41 = load i32* %tmp40, align 4 |
| %tmp42 = load i32* undef, align 4 |
| %tmp43 = load i32* undef |
| %tmp44 = xor i32 %tmp42, %tmp43 |
| %tmp45 = lshr i32 %tmp44, 8 |
| %tmp46 = lshr i32 %tmp44, 7 |
| call void @spam() |
| unreachable |
| |
| bb47: ; No predecessors! |
| ret void |
| |
| bb48: ; No predecessors! |
| br i1 undef, label %bb27, label %bb26 |
| |
| bb49: ; preds = %bb49, %bb27 |
| br label %bb49 |
| |
| bb50: ; preds = %bb50 |
| br label %bb50 |
| } |
| |
| declare void @spam() noreturn nounwind |
