; RUN: llc < %s -verify-machineinstrs ; PR13188 ; ; The _Unwind_RaiseException function can return normally and via eh.return. ; This causes confusion about the function live-out registers, since the two ; different ways of returning have different return values. ; target 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" target triple = "x86_64-unknown-freebsd9.0" %struct._Unwind_Context = type { [18 x i8*], i8*, i8*, i8*, %struct.dwarf_eh_bases, i64, i64, i64, [18 x i8] } %struct.dwarf_eh_bases = type { i8*, i8*, i8* } %struct._Unwind_FrameState = type { %struct.frame_state_reg_info, i64, i64, i8*, i32, i8*, i32 (i32, i32, i64, %struct._Unwind_Exception*, %struct._Unwind_Context*)*, i64, i64, i64, i8, i8, i8, i8, i8* } %struct.frame_state_reg_info = type { [18 x %struct.anon], %struct.frame_state_reg_info* } %struct.anon = type { %union.anon, i32 } %union.anon = type { i64 } %struct._Unwind_Exception = type { i64, void (i32, %struct._Unwind_Exception*)*, i64, i64 } @dwarf_reg_size_table = external hidden unnamed_addr global [18 x i8], align 16 declare void @abort() noreturn declare fastcc i32 @uw_frame_state_for(%struct._Unwind_Context*, %struct._Unwind_FrameState*) uwtable define hidden i32 @_Unwind_RaiseException(%struct._Unwind_Exception* %exc) uwtable { entry: %fs.i = alloca %struct._Unwind_FrameState, align 8 %this_context = alloca %struct._Unwind_Context, align 8 %cur_context = alloca %struct._Unwind_Context, align 8 %fs = alloca %struct._Unwind_FrameState, align 8 call void @llvm.eh.unwind.init() %0 = call i8* @llvm.eh.dwarf.cfa(i32 0) %1 = call i8* @llvm.returnaddress(i32 0) call fastcc void @uw_init_context_1(%struct._Unwind_Context* %this_context, i8* %0, i8* %1) %2 = bitcast %struct._Unwind_Context* %cur_context to i8* %3 = bitcast %struct._Unwind_Context* %this_context to i8* call void @llvm.memcpy.p0i8.p0i8.i64(i8* %2, i8* %3, i64 240, i32 8, i1 false) %personality = getelementptr inbounds %struct._Unwind_FrameState* %fs, i64 0, i32 6 %retaddr_column.i = getelementptr inbounds %struct._Unwind_FrameState* %fs, i64 0, i32 9 %flags.i.i.i.i = getelementptr inbounds %struct._Unwind_Context* %cur_context, i64 0, i32 5 %ra.i = getelementptr inbounds %struct._Unwind_Context* %cur_context, i64 0, i32 2 %exception_class = getelementptr inbounds %struct._Unwind_Exception* %exc, i64 0, i32 0 br label %while.body while.body: ; preds = %uw_update_context.exit, %entry %call = call fastcc i32 @uw_frame_state_for(%struct._Unwind_Context* %cur_context, %struct._Unwind_FrameState* %fs) switch i32 %call, label %do.end21 [ i32 5, label %do.end21.loopexit46 i32 0, label %if.end3 ] if.end3: ; preds = %while.body %4 = load i32 (i32, i32, i64, %struct._Unwind_Exception*, %struct._Unwind_Context*)** %personality, align 8, !tbaa !0 %tobool = icmp eq i32 (i32, i32, i64, %struct._Unwind_Exception*, %struct._Unwind_Context*)* %4, null br i1 %tobool, label %if.end13, label %if.then4 if.then4: ; preds = %if.end3 %5 = load i64* %exception_class, align 8, !tbaa !3 %call6 = call i32 %4(i32 1, i32 1, i64 %5, %struct._Unwind_Exception* %exc, %struct._Unwind_Context* %cur_context) switch i32 %call6, label %do.end21.loopexit46 [ i32 6, label %while.end i32 8, label %if.end13 ] if.end13: ; preds = %if.then4, %if.end3 call fastcc void @uw_update_context_1(%struct._Unwind_Context* %cur_context, %struct._Unwind_FrameState* %fs) %6 = load i64* %retaddr_column.i, align 8, !tbaa !3 %conv.i = trunc i64 %6 to i32 %cmp.i.i.i = icmp slt i32 %conv.i, 18 br i1 %cmp.i.i.i, label %cond.end.i.i.i, label %cond.true.i.i.i cond.true.i.i.i: ; preds = %if.end13 call void @abort() noreturn unreachable cond.end.i.i.i: ; preds = %if.end13 %sext.i = shl i64 %6, 32 %idxprom.i.i.i = ashr exact i64 %sext.i, 32 %arrayidx.i.i.i = getelementptr inbounds [18 x i8]* @dwarf_reg_size_table, i64 0, i64 %idxprom.i.i.i %7 = load i8* %arrayidx.i.i.i, align 1, !tbaa !1 %arrayidx2.i.i.i = getelementptr inbounds %struct._Unwind_Context* %cur_context, i64 0, i32 0, i64 %idxprom.i.i.i %8 = load i8** %arrayidx2.i.i.i, align 8, !tbaa !0 %9 = load i64* %flags.i.i.i.i, align 8, !tbaa !3 %and.i.i.i.i = and i64 %9, 4611686018427387904 %tobool.i.i.i = icmp eq i64 %and.i.i.i.i, 0 br i1 %tobool.i.i.i, label %if.end.i.i.i, label %land.lhs.true.i.i.i land.lhs.true.i.i.i: ; preds = %cond.end.i.i.i %arrayidx4.i.i.i = getelementptr inbounds %struct._Unwind_Context* %cur_context, i64 0, i32 8, i64 %idxprom.i.i.i %10 = load i8* %arrayidx4.i.i.i, align 1, !tbaa !1 %tobool6.i.i.i = icmp eq i8 %10, 0 br i1 %tobool6.i.i.i, label %if.end.i.i.i, label %if.then.i.i.i if.then.i.i.i: ; preds = %land.lhs.true.i.i.i %11 = ptrtoint i8* %8 to i64 br label %uw_update_context.exit if.end.i.i.i: ; preds = %land.lhs.true.i.i.i, %cond.end.i.i.i %cmp8.i.i.i = icmp eq i8 %7, 8 br i1 %cmp8.i.i.i, label %if.then10.i.i.i, label %cond.true14.i.i.i if.then10.i.i.i: ; preds = %if.end.i.i.i %12 = bitcast i8* %8 to i64* %13 = load i64* %12, align 8, !tbaa !3 br label %uw_update_context.exit cond.true14.i.i.i: ; preds = %if.end.i.i.i call void @abort() noreturn unreachable uw_update_context.exit: ; preds = %if.then10.i.i.i, %if.then.i.i.i %retval.0.i.i.i = phi i64 [ %11, %if.then.i.i.i ], [ %13, %if.then10.i.i.i ] %14 = inttoptr i64 %retval.0.i.i.i to i8* store i8* %14, i8** %ra.i, align 8, !tbaa !0 br label %while.body while.end: ; preds = %if.then4 %private_1 = getelementptr inbounds %struct._Unwind_Exception* %exc, i64 0, i32 2 store i64 0, i64* %private_1, align 8, !tbaa !3 %15 = load i8** %ra.i, align 8, !tbaa !0 %16 = ptrtoint i8* %15 to i64 %private_2 = getelementptr inbounds %struct._Unwind_Exception* %exc, i64 0, i32 3 store i64 %16, i64* %private_2, align 8, !tbaa !3 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %2, i8* %3, i64 240, i32 8, i1 false) %17 = bitcast %struct._Unwind_FrameState* %fs.i to i8* call void @llvm.lifetime.start(i64 -1, i8* %17) %personality.i = getelementptr inbounds %struct._Unwind_FrameState* %fs.i, i64 0, i32 6 %retaddr_column.i22 = getelementptr inbounds %struct._Unwind_FrameState* %fs.i, i64 0, i32 9 br label %while.body.i while.body.i: ; preds = %uw_update_context.exit44, %while.end %call.i = call fastcc i32 @uw_frame_state_for(%struct._Unwind_Context* %cur_context, %struct._Unwind_FrameState* %fs.i) %18 = load i8** %ra.i, align 8, !tbaa !0 %19 = ptrtoint i8* %18 to i64 %20 = load i64* %private_2, align 8, !tbaa !3 %cmp.i = icmp eq i64 %19, %20 %cmp2.i = icmp eq i32 %call.i, 0 br i1 %cmp2.i, label %if.end.i, label %do.end21 if.end.i: ; preds = %while.body.i %21 = load i32 (i32, i32, i64, %struct._Unwind_Exception*, %struct._Unwind_Context*)** %personality.i, align 8, !tbaa !0 %tobool.i = icmp eq i32 (i32, i32, i64, %struct._Unwind_Exception*, %struct._Unwind_Context*)* %21, null br i1 %tobool.i, label %if.end12.i, label %if.then3.i if.then3.i: ; preds = %if.end.i %or.i = select i1 %cmp.i, i32 6, i32 2 %22 = load i64* %exception_class, align 8, !tbaa !3 %call5.i = call i32 %21(i32 1, i32 %or.i, i64 %22, %struct._Unwind_Exception* %exc, %struct._Unwind_Context* %cur_context) switch i32 %call5.i, label %do.end21 [ i32 7, label %do.body19 i32 8, label %if.end12.i ] if.end12.i: ; preds = %if.then3.i, %if.end.i br i1 %cmp.i, label %cond.true.i, label %cond.end.i cond.true.i: ; preds = %if.end12.i call void @abort() noreturn unreachable cond.end.i: ; preds = %if.end12.i call fastcc void @uw_update_context_1(%struct._Unwind_Context* %cur_context, %struct._Unwind_FrameState* %fs.i) %23 = load i64* %retaddr_column.i22, align 8, !tbaa !3 %conv.i23 = trunc i64 %23 to i32 %cmp.i.i.i24 = icmp slt i32 %conv.i23, 18 br i1 %cmp.i.i.i24, label %cond.end.i.i.i33, label %cond.true.i.i.i25 cond.true.i.i.i25: ; preds = %cond.end.i call void @abort() noreturn unreachable cond.end.i.i.i33: ; preds = %cond.end.i %sext.i26 = shl i64 %23, 32 %idxprom.i.i.i27 = ashr exact i64 %sext.i26, 32 %arrayidx.i.i.i28 = getelementptr inbounds [18 x i8]* @dwarf_reg_size_table, i64 0, i64 %idxprom.i.i.i27 %24 = load i8* %arrayidx.i.i.i28, align 1, !tbaa !1 %arrayidx2.i.i.i29 = getelementptr inbounds %struct._Unwind_Context* %cur_context, i64 0, i32 0, i64 %idxprom.i.i.i27 %25 = load i8** %arrayidx2.i.i.i29, align 8, !tbaa !0 %26 = load i64* %flags.i.i.i.i, align 8, !tbaa !3 %and.i.i.i.i31 = and i64 %26, 4611686018427387904 %tobool.i.i.i32 = icmp eq i64 %and.i.i.i.i31, 0 br i1 %tobool.i.i.i32, label %if.end.i.i.i39, label %land.lhs.true.i.i.i36 land.lhs.true.i.i.i36: ; preds = %cond.end.i.i.i33 %arrayidx4.i.i.i34 = getelementptr inbounds %struct._Unwind_Context* %cur_context, i64 0, i32 8, i64 %idxprom.i.i.i27 %27 = load i8* %arrayidx4.i.i.i34, align 1, !tbaa !1 %tobool6.i.i.i35 = icmp eq i8 %27, 0 br i1 %tobool6.i.i.i35, label %if.end.i.i.i39, label %if.then.i.i.i37 if.then.i.i.i37: ; preds = %land.lhs.true.i.i.i36 %28 = ptrtoint i8* %25 to i64 br label %uw_update_context.exit44 if.end.i.i.i39: ; preds = %land.lhs.true.i.i.i36, %cond.end.i.i.i33 %cmp8.i.i.i38 = icmp eq i8 %24, 8 br i1 %cmp8.i.i.i38, label %if.then10.i.i.i40, label %cond.true14.i.i.i41 if.then10.i.i.i40: ; preds = %if.end.i.i.i39 %29 = bitcast i8* %25 to i64* %30 = load i64* %29, align 8, !tbaa !3 br label %uw_update_context.exit44 cond.true14.i.i.i41: ; preds = %if.end.i.i.i39 call void @abort() noreturn unreachable uw_update_context.exit44: ; preds = %if.then10.i.i.i40, %if.then.i.i.i37 %retval.0.i.i.i42 = phi i64 [ %28, %if.then.i.i.i37 ], [ %30, %if.then10.i.i.i40 ] %31 = inttoptr i64 %retval.0.i.i.i42 to i8* store i8* %31, i8** %ra.i, align 8, !tbaa !0 br label %while.body.i do.body19: ; preds = %if.then3.i call void @llvm.lifetime.end(i64 -1, i8* %17) %call20 = call fastcc i64 @uw_install_context_1(%struct._Unwind_Context* %this_context, %struct._Unwind_Context* %cur_context) %32 = load i8** %ra.i, align 8, !tbaa !0 call void @llvm.eh.return.i64(i64 %call20, i8* %32) unreachable do.end21.loopexit46: ; preds = %if.then4, %while.body %retval.0.ph = phi i32 [ 3, %if.then4 ], [ 5, %while.body ] br label %do.end21 do.end21: ; preds = %do.end21.loopexit46, %if.then3.i, %while.body.i, %while.body %retval.0 = phi i32 [ %retval.0.ph, %do.end21.loopexit46 ], [ 3, %while.body ], [ 2, %while.body.i ], [ 2, %if.then3.i ] ret i32 %retval.0 } declare void @llvm.eh.unwind.init() nounwind declare fastcc void @uw_init_context_1(%struct._Unwind_Context*, i8*, i8*) uwtable declare i8* @llvm.eh.dwarf.cfa(i32) nounwind declare i8* @llvm.returnaddress(i32) nounwind readnone declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind declare fastcc i64 @uw_install_context_1(%struct._Unwind_Context*, %struct._Unwind_Context*) uwtable declare void @llvm.eh.return.i64(i64, i8*) nounwind declare fastcc void @uw_update_context_1(%struct._Unwind_Context*, %struct._Unwind_FrameState* nocapture) uwtable declare void @llvm.lifetime.start(i64, i8* nocapture) nounwind declare void @llvm.lifetime.end(i64, i8* nocapture) nounwind !0 = metadata !{metadata !"any pointer", metadata !1} !1 = metadata !{metadata !"omnipotent char", metadata !2} !2 = metadata !{metadata !"Simple C/C++ TBAA"} !3 = metadata !{metadata !"long", metadata !1}