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1; RUN: llc < %s -verify-machineinstrs2; PR131883;4; The _Unwind_RaiseException function can return normally and via eh.return.5; This causes confusion about the function live-out registers, since the two6; different ways of returning have different return values.7;8target 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-S128"9target triple = "x86_64-unknown-freebsd9.0"10 11%struct._Unwind_Context = type { [18 x ptr], ptr, ptr, ptr, %struct.dwarf_eh_bases, i64, i64, i64, [18 x i8] }12%struct.dwarf_eh_bases = type { ptr, ptr, ptr }13%struct._Unwind_FrameState = type { %struct.frame_state_reg_info, i64, i64, ptr, i32, ptr, ptr, i64, i64, i64, i8, i8, i8, i8, ptr }14%struct.frame_state_reg_info = type { [18 x %struct.anon], ptr }15%struct.anon = type { %union.anon, i32 }16%union.anon = type { i64 }17%struct._Unwind_Exception = type { i64, ptr, i64, i64 }18 19@dwarf_reg_size_table = external hidden unnamed_addr global [18 x i8], align 1620 21declare void @abort() noreturn22 23declare fastcc i32 @uw_frame_state_for(ptr, ptr) uwtable24 25define hidden i32 @_Unwind_RaiseException(ptr %exc) uwtable {26entry:27  %fs.i = alloca %struct._Unwind_FrameState, align 828  %this_context = alloca %struct._Unwind_Context, align 829  %cur_context = alloca %struct._Unwind_Context, align 830  %fs = alloca %struct._Unwind_FrameState, align 831  call void @llvm.eh.unwind.init()32  %0 = call ptr @llvm.eh.dwarf.cfa(i32 0)33  %1 = call ptr @llvm.returnaddress(i32 0)34  call fastcc void @uw_init_context_1(ptr %this_context, ptr %0, ptr %1)35  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %cur_context, ptr align 8 %this_context, i64 240, i1 false)36  %personality = getelementptr inbounds %struct._Unwind_FrameState, ptr %fs, i64 0, i32 637  %retaddr_column.i = getelementptr inbounds %struct._Unwind_FrameState, ptr %fs, i64 0, i32 938  %flags.i.i.i.i = getelementptr inbounds %struct._Unwind_Context, ptr %cur_context, i64 0, i32 539  %ra.i = getelementptr inbounds %struct._Unwind_Context, ptr %cur_context, i64 0, i32 240  br label %while.body41 42while.body:                                       ; preds = %uw_update_context.exit, %entry43  %call = call fastcc i32 @uw_frame_state_for(ptr %cur_context, ptr %fs)44  switch i32 %call, label %do.end21 [45    i32 5, label %do.end21.loopexit4646    i32 0, label %if.end347  ]48 49if.end3:                                          ; preds = %while.body50  %2 = load ptr, ptr %personality, align 851  %tobool = icmp eq ptr %2, null52  br i1 %tobool, label %if.end13, label %if.then453 54if.then4:                                         ; preds = %if.end355  %3 = load i64, ptr %exc, align 856  %call6 = call i32 %2(i32 1, i32 1, i64 %3, ptr %exc, ptr %cur_context)57  switch i32 %call6, label %do.end21.loopexit46 [58    i32 6, label %while.end59    i32 8, label %if.end1360  ]61 62if.end13:                                         ; preds = %if.then4, %if.end363  call fastcc void @uw_update_context_1(ptr %cur_context, ptr %fs)64  %4 = load i64, ptr %retaddr_column.i, align 865  %conv.i = trunc i64 %4 to i3266  %cmp.i.i.i = icmp slt i32 %conv.i, 1867  br i1 %cmp.i.i.i, label %cond.end.i.i.i, label %cond.true.i.i.i68 69cond.true.i.i.i:                                  ; preds = %if.end1370  call void @abort() noreturn71  unreachable72 73cond.end.i.i.i:                                   ; preds = %if.end1374  %sext.i = shl i64 %4, 3275  %idxprom.i.i.i = ashr exact i64 %sext.i, 3276  %arrayidx.i.i.i = getelementptr inbounds [18 x i8], ptr @dwarf_reg_size_table, i64 0, i64 %idxprom.i.i.i77  %5 = load i8, ptr %arrayidx.i.i.i, align 178  %arrayidx2.i.i.i = getelementptr inbounds %struct._Unwind_Context, ptr %cur_context, i64 0, i32 0, i64 %idxprom.i.i.i79  %6 = load ptr, ptr %arrayidx2.i.i.i, align 880  %7 = load i64, ptr %flags.i.i.i.i, align 881  %and.i.i.i.i = and i64 %7, 461168601842738790482  %tobool.i.i.i = icmp eq i64 %and.i.i.i.i, 083  br i1 %tobool.i.i.i, label %if.end.i.i.i, label %land.lhs.true.i.i.i84 85land.lhs.true.i.i.i:                              ; preds = %cond.end.i.i.i86  %arrayidx4.i.i.i = getelementptr inbounds %struct._Unwind_Context, ptr %cur_context, i64 0, i32 8, i64 %idxprom.i.i.i87  %8 = load i8, ptr %arrayidx4.i.i.i, align 188  %tobool6.i.i.i = icmp eq i8 %8, 089  br i1 %tobool6.i.i.i, label %if.end.i.i.i, label %if.then.i.i.i90 91if.then.i.i.i:                                    ; preds = %land.lhs.true.i.i.i92  %9 = ptrtoint ptr %6 to i6493  br label %uw_update_context.exit94 95if.end.i.i.i:                                     ; preds = %land.lhs.true.i.i.i, %cond.end.i.i.i96  %cmp8.i.i.i = icmp eq i8 %5, 897  br i1 %cmp8.i.i.i, label %if.then10.i.i.i, label %cond.true14.i.i.i98 99if.then10.i.i.i:                                  ; preds = %if.end.i.i.i100  %10 = load i64, ptr %6, align 8101  br label %uw_update_context.exit102 103cond.true14.i.i.i:                                ; preds = %if.end.i.i.i104  call void @abort() noreturn105  unreachable106 107uw_update_context.exit:                           ; preds = %if.then10.i.i.i, %if.then.i.i.i108  %retval.0.i.i.i = phi i64 [ %9, %if.then.i.i.i ], [ %10, %if.then10.i.i.i ]109  %11 = inttoptr i64 %retval.0.i.i.i to ptr110  store ptr %11, ptr %ra.i, align 8111  br label %while.body112 113while.end:                                        ; preds = %if.then4114  %private_1 = getelementptr inbounds %struct._Unwind_Exception, ptr %exc, i64 0, i32 2115  store i64 0, ptr %private_1, align 8116  %12 = load ptr, ptr %ra.i, align 8117  %13 = ptrtoint ptr %12 to i64118  %private_2 = getelementptr inbounds %struct._Unwind_Exception, ptr %exc, i64 0, i32 3119  store i64 %13, ptr %private_2, align 8120  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %cur_context, ptr align 8 %this_context, i64 240, i1 false)121  call void @llvm.lifetime.start.p0(i64 -1, ptr %fs.i)122  %personality.i = getelementptr inbounds %struct._Unwind_FrameState, ptr %fs.i, i64 0, i32 6123  %retaddr_column.i22 = getelementptr inbounds %struct._Unwind_FrameState, ptr %fs.i, i64 0, i32 9124  br label %while.body.i125 126while.body.i:                                     ; preds = %uw_update_context.exit44, %while.end127  %call.i = call fastcc i32 @uw_frame_state_for(ptr %cur_context, ptr %fs.i)128  %14 = load ptr, ptr %ra.i, align 8129  %15 = ptrtoint ptr %14 to i64130  %16 = load i64, ptr %private_2, align 8131  %cmp.i = icmp eq i64 %15, %16132  %cmp2.i = icmp eq i32 %call.i, 0133  br i1 %cmp2.i, label %if.end.i, label %do.end21134 135if.end.i:                                         ; preds = %while.body.i136  %17 = load ptr, ptr %personality.i, align 8137  %tobool.i = icmp eq ptr %17, null138  br i1 %tobool.i, label %if.end12.i, label %if.then3.i139 140if.then3.i:                                       ; preds = %if.end.i141  %or.i = select i1 %cmp.i, i32 6, i32 2142  %18 = load i64, ptr %exc, align 8143  %call5.i = call i32 %17(i32 1, i32 %or.i, i64 %18, ptr %exc, ptr %cur_context)144  switch i32 %call5.i, label %do.end21 [145    i32 7, label %do.body19146    i32 8, label %if.end12.i147  ]148 149if.end12.i:                                       ; preds = %if.then3.i, %if.end.i150  br i1 %cmp.i, label %cond.true.i, label %cond.end.i151 152cond.true.i:                                      ; preds = %if.end12.i153  call void @abort() noreturn154  unreachable155 156cond.end.i:                                       ; preds = %if.end12.i157  call fastcc void @uw_update_context_1(ptr %cur_context, ptr %fs.i)158  %19 = load i64, ptr %retaddr_column.i22, align 8159  %conv.i23 = trunc i64 %19 to i32160  %cmp.i.i.i24 = icmp slt i32 %conv.i23, 18161  br i1 %cmp.i.i.i24, label %cond.end.i.i.i33, label %cond.true.i.i.i25162 163cond.true.i.i.i25:                                ; preds = %cond.end.i164  call void @abort() noreturn165  unreachable166 167cond.end.i.i.i33:                                 ; preds = %cond.end.i168  %sext.i26 = shl i64 %19, 32169  %idxprom.i.i.i27 = ashr exact i64 %sext.i26, 32170  %arrayidx.i.i.i28 = getelementptr inbounds [18 x i8], ptr @dwarf_reg_size_table, i64 0, i64 %idxprom.i.i.i27171  %20 = load i8, ptr %arrayidx.i.i.i28, align 1172  %arrayidx2.i.i.i29 = getelementptr inbounds %struct._Unwind_Context, ptr %cur_context, i64 0, i32 0, i64 %idxprom.i.i.i27173  %21 = load ptr, ptr %arrayidx2.i.i.i29, align 8174  %22 = load i64, ptr %flags.i.i.i.i, align 8175  %and.i.i.i.i31 = and i64 %22, 4611686018427387904176  %tobool.i.i.i32 = icmp eq i64 %and.i.i.i.i31, 0177  br i1 %tobool.i.i.i32, label %if.end.i.i.i39, label %land.lhs.true.i.i.i36178 179land.lhs.true.i.i.i36:                            ; preds = %cond.end.i.i.i33180  %arrayidx4.i.i.i34 = getelementptr inbounds %struct._Unwind_Context, ptr %cur_context, i64 0, i32 8, i64 %idxprom.i.i.i27181  %23 = load i8, ptr %arrayidx4.i.i.i34, align 1182  %tobool6.i.i.i35 = icmp eq i8 %23, 0183  br i1 %tobool6.i.i.i35, label %if.end.i.i.i39, label %if.then.i.i.i37184 185if.then.i.i.i37:                                  ; preds = %land.lhs.true.i.i.i36186  %24 = ptrtoint ptr %21 to i64187  br label %uw_update_context.exit44188 189if.end.i.i.i39:                                   ; preds = %land.lhs.true.i.i.i36, %cond.end.i.i.i33190  %cmp8.i.i.i38 = icmp eq i8 %20, 8191  br i1 %cmp8.i.i.i38, label %if.then10.i.i.i40, label %cond.true14.i.i.i41192 193if.then10.i.i.i40:                                ; preds = %if.end.i.i.i39194  %25 = load i64, ptr %21, align 8195  br label %uw_update_context.exit44196 197cond.true14.i.i.i41:                              ; preds = %if.end.i.i.i39198  call void @abort() noreturn199  unreachable200 201uw_update_context.exit44:                         ; preds = %if.then10.i.i.i40, %if.then.i.i.i37202  %retval.0.i.i.i42 = phi i64 [ %24, %if.then.i.i.i37 ], [ %25, %if.then10.i.i.i40 ]203  %26 = inttoptr i64 %retval.0.i.i.i42 to ptr204  store ptr %26, ptr %ra.i, align 8205  br label %while.body.i206 207do.body19:                                        ; preds = %if.then3.i208  call void @llvm.lifetime.end.p0(i64 -1, ptr %fs.i)209  %call20 = call fastcc i64 @uw_install_context_1(ptr %this_context, ptr %cur_context)210  %27 = load ptr, ptr %ra.i, align 8211  call void @llvm.eh.return.i64(i64 %call20, ptr %27)212  unreachable213 214do.end21.loopexit46:                              ; preds = %if.then4, %while.body215  %retval.0.ph = phi i32 [ 3, %if.then4 ], [ 5, %while.body ]216  br label %do.end21217 218do.end21:                                         ; preds = %do.end21.loopexit46, %if.then3.i, %while.body.i, %while.body219  %retval.0 = phi i32 [ %retval.0.ph, %do.end21.loopexit46 ], [ 3, %while.body ], [ 2, %while.body.i ], [ 2, %if.then3.i ]220  ret i32 %retval.0221}222 223declare void @llvm.eh.unwind.init() nounwind224 225declare fastcc void @uw_init_context_1(ptr, ptr, ptr) uwtable226 227declare ptr @llvm.eh.dwarf.cfa(i32) nounwind228 229declare ptr @llvm.returnaddress(i32) nounwind readnone230 231declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture, i64, i1) nounwind232 233declare fastcc i64 @uw_install_context_1(ptr, ptr) uwtable234 235declare void @llvm.eh.return.i64(i64, ptr) nounwind236 237declare fastcc void @uw_update_context_1(ptr, ptr nocapture) uwtable238 239declare void @llvm.lifetime.start.p0(i64, ptr nocapture) nounwind240 241declare void @llvm.lifetime.end.p0(i64, ptr nocapture) nounwind242