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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