| ; 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} |
